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Finding the Fourth Proportional to 425,356.44, 586,459.62 and 272,143.32

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Solution

The fourth proportional to 425,356.44, 586,459.62 and 272,143.32 is: 375,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,356.44 : 586,459.62 = 272,143.32 : x
  2. Step 2: Convert to fraction form
    425,356.44/586,459.62 = 272,143.32/x
  3. Step 3: Cross multiply
    425,356.44x = 586,459.62 × 272,143.32
  4. Step 4: Simplify right side
    425,356.44x = 159,601,068,032.74
  5. Step 5: Solve for x
    x = 159,601,068,032.74/425,356.44
  6. Step 6: Final answer
    x = 375,217.24

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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.