Home / 714,275.18-985,707.21-392,006.06

Finding the Fourth Proportional to 714,275.18, 985,707.21 and 392,006.06

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Solution

The fourth proportional to 714,275.18, 985,707.21 and 392,006.06 is: 540,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,275.18 : 985,707.21 = 392,006.06 : x
  2. Step 2: Convert to fraction form
    714,275.18/985,707.21 = 392,006.06/x
  3. Step 3: Cross multiply
    714,275.18x = 985,707.21 × 392,006.06
  4. Step 4: Simplify right side
    714,275.18x = 386,403,199,705.69
  5. Step 5: Solve for x
    x = 386,403,199,705.69/714,275.18
  6. Step 6: Final answer
    x = 540,972.46

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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.