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Finding the Fourth Proportional to 459,018.48, 633,432.81 and 255,064.12

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Solution

The fourth proportional to 459,018.48, 633,432.81 and 255,064.12 is: 351,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,018.48 : 633,432.81 = 255,064.12 : x
  2. Step 2: Convert to fraction form
    459,018.48/633,432.81 = 255,064.12/x
  3. Step 3: Cross multiply
    459,018.48x = 633,432.81 × 255,064.12
  4. Step 4: Simplify right side
    459,018.48x = 161,565,982,261.78
  5. Step 5: Solve for x
    x = 161,565,982,261.78/459,018.48
  6. Step 6: Final answer
    x = 351,981.44

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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.