Home / 711,519.03-981,949.53-405,602.69

Finding the Fourth Proportional to 711,519.03, 981,949.53 and 405,602.69

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Solution

The fourth proportional to 711,519.03, 981,949.53 and 405,602.69 is: 559,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,519.03 : 981,949.53 = 405,602.69 : x
  2. Step 2: Convert to fraction form
    711,519.03/981,949.53 = 405,602.69/x
  3. Step 3: Cross multiply
    711,519.03x = 981,949.53 × 405,602.69
  4. Step 4: Simplify right side
    711,519.03x = 398,281,365,902.49
  5. Step 5: Solve for x
    x = 398,281,365,902.49/711,519.03
  6. Step 6: Final answer
    x = 559,762.07

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1.5x scale

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.