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Finding the Fourth Proportional to 922,174.64, 1,272,598.49 and 514,276.91

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Solution

The fourth proportional to 922,174.64, 1,272,598.49 and 514,276.91 is: 709,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,174.64 : 1,272,598.49 = 514,276.91 : x
  2. Step 2: Convert to fraction form
    922,174.64/1,272,598.49 = 514,276.91/x
  3. Step 3: Cross multiply
    922,174.64x = 1,272,598.49 × 514,276.91
  4. Step 4: Simplify right side
    922,174.64x = 654,468,025,961.18
  5. Step 5: Solve for x
    x = 654,468,025,961.18/922,174.64
  6. Step 6: Final answer
    x = 709,700.74

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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.