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Finding the Fourth Proportional to 453,693.16, 625,746.85 and 281,712.95

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Solution

The fourth proportional to 453,693.16, 625,746.85 and 281,712.95 is: 388,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,693.16 : 625,746.85 = 281,712.95 : x
  2. Step 2: Convert to fraction form
    453,693.16/625,746.85 = 281,712.95/x
  3. Step 3: Cross multiply
    453,693.16x = 625,746.85 × 281,712.95
  4. Step 4: Simplify right side
    453,693.16x = 176,280,986,529.41
  5. Step 5: Solve for x
    x = 176,280,986,529.41/453,693.16
  6. Step 6: Final answer
    x = 388,546.72

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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.