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Finding the Fourth Proportional to 459,472.76, 634,072.77 and 255,519.20

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Solution

The fourth proportional to 459,472.76, 634,072.77 and 255,519.20 is: 352,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,472.76 : 634,072.77 = 255,519.20 : x
  2. Step 2: Convert to fraction form
    459,472.76/634,072.77 = 255,519.20/x
  3. Step 3: Cross multiply
    459,472.76x = 634,072.77 × 255,519.20
  4. Step 4: Simplify right side
    459,472.76x = 162,017,766,932.18
  5. Step 5: Solve for x
    x = 162,017,766,932.18/459,472.76
  6. Step 6: Final answer
    x = 352,616.70

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1.5x scale

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.