Home / 714,424.61-985,902.50-392,140.19

Finding the Fourth Proportional to 714,424.61, 985,902.50 and 392,140.19

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Solution

The fourth proportional to 714,424.61, 985,902.50 and 392,140.19 is: 541,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,424.61 : 985,902.50 = 392,140.19 : x
  2. Step 2: Convert to fraction form
    714,424.61/985,902.50 = 392,140.19/x
  3. Step 3: Cross multiply
    714,424.61x = 985,902.50 × 392,140.19
  4. Step 4: Simplify right side
    714,424.61x = 386,611,997,116.58
  5. Step 5: Solve for x
    x = 386,611,997,116.58/714,424.61
  6. Step 6: Final answer
    x = 541,151.56

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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.