Home / 711,470,867,717.56-981,829,797,450.60-406,976,523,698.96

Finding the Fourth Proportional to 711,470,867,717.56, 981,829,797,450.60 and 406,976,523,698.96

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Solution

The fourth proportional to 711,470,867,717.56, 981,829,797,450.60 and 406,976,523,698.96 is: 561,627,602,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,470,867,717.56 : 981,829,797,450.60 = 406,976,523,698.96 : x
  2. Step 2: Convert to fraction form
    711,470,867,717.56/981,829,797,450.60 = 406,976,523,698.96/x
  3. Step 3: Cross multiply
    711,470,867,717.56x = 981,829,797,450.60 × 406,976,523,698.96
  4. Step 4: Simplify right side
    711,470,867,717.56x = 399,581,677,830,499,198,828,544
  5. Step 5: Solve for x
    x = 399,581,677,830,499,198,828,544/711,470,867,717.56
  6. Step 6: Final answer
    x = 561,627,602,704.78

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.