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Finding the Fourth Proportional to 669,655.59, 924,132.20 and 394,074.37

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Solution

The fourth proportional to 669,655.59, 924,132.20 and 394,074.37 is: 543,827.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,655.59 : 924,132.20 = 394,074.37 : x
  2. Step 2: Convert to fraction form
    669,655.59/924,132.20 = 394,074.37/x
  3. Step 3: Cross multiply
    669,655.59x = 924,132.20 × 394,074.37
  4. Step 4: Simplify right side
    669,655.59x = 364,176,817,117.12
  5. Step 5: Solve for x
    x = 364,176,817,117.12/669,655.59
  6. Step 6: Final answer
    x = 543,827.04

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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.