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Finding the Fourth Proportional to 623,705.60, 936,019.20 and 413,273.60

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Solution

The fourth proportional to 623,705.60, 936,019.20 and 413,273.60 is: 620,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,705.60 : 936,019.20 = 413,273.60 : x
  2. Step 2: Convert to fraction form
    623,705.60/936,019.20 = 413,273.60/x
  3. Step 3: Cross multiply
    623,705.60x = 936,019.20 × 413,273.60
  4. Step 4: Simplify right side
    623,705.60x = 386,832,024,453.12
  5. Step 5: Solve for x
    x = 386,832,024,453.12/623,705.60
  6. Step 6: Final answer
    x = 620,215.73

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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.