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Finding the Fourth Proportional to 624,062.64, 861,210.64 and 382,345.68

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Solution

The fourth proportional to 624,062.64, 861,210.64 and 382,345.68 is: 527,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,062.64 : 861,210.64 = 382,345.68 : x
  2. Step 2: Convert to fraction form
    624,062.64/861,210.64 = 382,345.68/x
  3. Step 3: Cross multiply
    624,062.64x = 861,210.64 × 382,345.68
  4. Step 4: Simplify right side
    624,062.64x = 329,280,167,774.04
  5. Step 5: Solve for x
    x = 329,280,167,774.04/624,062.64
  6. Step 6: Final answer
    x = 527,639.61

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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.