Home / 711,332.18-981,663.96-405,454.71

Finding the Fourth Proportional to 711,332.18, 981,663.96 and 405,454.71

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Solution

The fourth proportional to 711,332.18, 981,663.96 and 405,454.71 is: 559,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,332.18 : 981,663.96 = 405,454.71 : x
  2. Step 2: Convert to fraction form
    711,332.18/981,663.96 = 405,454.71/x
  3. Step 3: Cross multiply
    711,332.18x = 981,663.96 × 405,454.71
  4. Step 4: Simplify right side
    711,332.18x = 398,020,279,140.26
  5. Step 5: Solve for x
    x = 398,020,279,140.26/711,332.18
  6. Step 6: Final answer
    x = 559,542.07

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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.