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Finding the Fourth Proportional to 615,832.20, 850,081.50 and 529,445.16

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Solution

The fourth proportional to 615,832.20, 850,081.50 and 529,445.16 is: 730,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,832.20 : 850,081.50 = 529,445.16 : x
  2. Step 2: Convert to fraction form
    615,832.20/850,081.50 = 529,445.16/x
  3. Step 3: Cross multiply
    615,832.20x = 850,081.50 × 529,445.16
  4. Step 4: Simplify right side
    615,832.20x = 450,071,535,780.54
  5. Step 5: Solve for x
    x = 450,071,535,780.54/615,832.20
  6. Step 6: Final answer
    x = 730,834.69

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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.