Home / 714,266.20-985,699.56-392,006.28

Finding the Fourth Proportional to 714,266.20, 985,699.56 and 392,006.28

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Solution

The fourth proportional to 714,266.20, 985,699.56 and 392,006.28 is: 540,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,266.20 : 985,699.56 = 392,006.28 : x
  2. Step 2: Convert to fraction form
    714,266.20/985,699.56 = 392,006.28/x
  3. Step 3: Cross multiply
    714,266.20x = 985,699.56 × 392,006.28
  4. Step 4: Simplify right side
    714,266.20x = 386,400,417,713.24
  5. Step 5: Solve for x
    x = 386,400,417,713.24/714,266.20
  6. Step 6: Final answer
    x = 540,975.36

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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.