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Finding the Fourth Proportional to 614,718.10, 922,077.15 and 577,320.40

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Solution

The fourth proportional to 614,718.10, 922,077.15 and 577,320.40 is: 865,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,718.10 : 922,077.15 = 577,320.40 : x
  2. Step 2: Convert to fraction form
    614,718.10/922,077.15 = 577,320.40/x
  3. Step 3: Cross multiply
    614,718.10x = 922,077.15 × 577,320.40
  4. Step 4: Simplify right side
    614,718.10x = 532,333,949,068.86
  5. Step 5: Solve for x
    x = 532,333,949,068.86/614,718.10
  6. Step 6: Final answer
    x = 865,980.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.