Home / 719,154.02-992,456.37-392,484.90

Finding the Fourth Proportional to 719,154.02, 992,456.37 and 392,484.90

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Solution

The fourth proportional to 719,154.02, 992,456.37 and 392,484.90 is: 541,642.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,154.02 : 992,456.37 = 392,484.90 : x
  2. Step 2: Convert to fraction form
    719,154.02/992,456.37 = 392,484.90/x
  3. Step 3: Cross multiply
    719,154.02x = 992,456.37 × 392,484.90
  4. Step 4: Simplify right side
    719,154.02x = 389,524,141,168.11
  5. Step 5: Solve for x
    x = 389,524,141,168.11/719,154.02
  6. Step 6: Final answer
    x = 541,642.17

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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.