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Finding the Fourth Proportional to 604,814.10, 907,221.15 and 424,410.90

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Solution

The fourth proportional to 604,814.10, 907,221.15 and 424,410.90 is: 636,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,814.10 : 907,221.15 = 424,410.90 : x
  2. Step 2: Convert to fraction form
    604,814.10/907,221.15 = 424,410.90/x
  3. Step 3: Cross multiply
    604,814.10x = 907,221.15 × 424,410.90
  4. Step 4: Simplify right side
    604,814.10x = 385,034,544,770.54
  5. Step 5: Solve for x
    x = 385,034,544,770.54/604,814.10
  6. Step 6: Final answer
    x = 636,616.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.