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Finding the Fourth Proportional to 572,539.60, 858,118.20 and 291,912.40

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Solution

The fourth proportional to 572,539.60, 858,118.20 and 291,912.40 is: 437,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,539.60 : 858,118.20 = 291,912.40 : x
  2. Step 2: Convert to fraction form
    572,539.60/858,118.20 = 291,912.40/x
  3. Step 3: Cross multiply
    572,539.60x = 858,118.20 × 291,912.40
  4. Step 4: Simplify right side
    572,539.60x = 250,495,343,245.68
  5. Step 5: Solve for x
    x = 250,495,343,245.68/572,539.60
  6. Step 6: Final answer
    x = 437,516.19

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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.