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Finding the Fourth Proportional to 617,463.92, 927,746.22 and 392,922.20

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Solution

The fourth proportional to 617,463.92, 927,746.22 and 392,922.20 is: 590,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,463.92 : 927,746.22 = 392,922.20 : x
  2. Step 2: Convert to fraction form
    617,463.92/927,746.22 = 392,922.20/x
  3. Step 3: Cross multiply
    617,463.92x = 927,746.22 × 392,922.20
  4. Step 4: Simplify right side
    617,463.92x = 364,532,085,804.08
  5. Step 5: Solve for x
    x = 364,532,085,804.08/617,463.92
  6. Step 6: Final answer
    x = 590,369.86

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1.5x scale

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.