Home / 711,470,867,719.56-981,829,797,453.36-406,976,523,700.96

Finding the Fourth Proportional to 711,470,867,719.56, 981,829,797,453.36 and 406,976,523,700.96

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Solution

The fourth proportional to 711,470,867,719.56, 981,829,797,453.36 and 406,976,523,700.96 is: 561,627,602,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,470,867,719.56 : 981,829,797,453.36 = 406,976,523,700.96 : x
  2. Step 2: Convert to fraction form
    711,470,867,719.56/981,829,797,453.36 = 406,976,523,700.96/x
  3. Step 3: Cross multiply
    711,470,867,719.56x = 981,829,797,453.36 × 406,976,523,700.96
  4. Step 4: Simplify right side
    711,470,867,719.56x = 399,581,677,833,586,139,463,680
  5. Step 5: Solve for x
    x = 399,581,677,833,586,139,463,680/711,470,867,719.56
  6. Step 6: Final answer
    x = 561,627,602,707.54

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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.