Home / 656,053.32-984,391.02-390,338.76

Finding the Fourth Proportional to 656,053.32, 984,391.02 and 390,338.76

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Solution

The fourth proportional to 656,053.32, 984,391.02 and 390,338.76 is: 585,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,053.32 : 984,391.02 = 390,338.76 : x
  2. Step 2: Convert to fraction form
    656,053.32/984,391.02 = 390,338.76/x
  3. Step 3: Cross multiply
    656,053.32x = 984,391.02 × 390,338.76
  4. Step 4: Simplify right side
    656,053.32x = 384,245,970,101.94
  5. Step 5: Solve for x
    x = 384,245,970,101.94/656,053.32
  6. Step 6: Final answer
    x = 585,693.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.