Home / 714,430.71-985,927.10-392,170.77

Finding the Fourth Proportional to 714,430.71, 985,927.10 and 392,170.77

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Solution

The fourth proportional to 714,430.71, 985,927.10 and 392,170.77 is: 541,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,430.71 : 985,927.10 = 392,170.77 : x
  2. Step 2: Convert to fraction form
    714,430.71/985,927.10 = 392,170.77/x
  3. Step 3: Cross multiply
    714,430.71x = 985,927.10 × 392,170.77
  4. Step 4: Simplify right side
    714,430.71x = 386,651,788,010.01
  5. Step 5: Solve for x
    x = 386,651,788,010.01/714,430.71
  6. Step 6: Final answer
    x = 541,202.64

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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.