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Finding the Fourth Proportional to 457,898.48, 683,479.12 and 425,809.52

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Solution

The fourth proportional to 457,898.48, 683,479.12 and 425,809.52 is: 635,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,898.48 : 683,479.12 = 425,809.52 : x
  2. Step 2: Convert to fraction form
    457,898.48/683,479.12 = 425,809.52/x
  3. Step 3: Cross multiply
    457,898.48x = 683,479.12 × 425,809.52
  4. Step 4: Simplify right side
    457,898.48x = 291,031,916,017.22
  5. Step 5: Solve for x
    x = 291,031,916,017.22/457,898.48
  6. Step 6: Final answer
    x = 635,581.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.