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Finding the Fourth Proportional to 534,545.10, 737,081.10 and 340,645.68

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Solution

The fourth proportional to 534,545.10, 737,081.10 and 340,645.68 is: 469,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,545.10 : 737,081.10 = 340,645.68 : x
  2. Step 2: Convert to fraction form
    534,545.10/737,081.10 = 340,645.68/x
  3. Step 3: Cross multiply
    534,545.10x = 737,081.10 × 340,645.68
  4. Step 4: Simplify right side
    534,545.10x = 251,083,492,524.65
  5. Step 5: Solve for x
    x = 251,083,492,524.65/534,545.10
  6. Step 6: Final answer
    x = 469,714.33

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Double scale
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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.