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Finding the Fourth Proportional to 572,467.60, 858,010.20 and 291,840.40

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Solution

The fourth proportional to 572,467.60, 858,010.20 and 291,840.40 is: 437,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,467.60 : 858,010.20 = 291,840.40 : x
  2. Step 2: Convert to fraction form
    572,467.60/858,010.20 = 291,840.40/x
  3. Step 3: Cross multiply
    572,467.60x = 858,010.20 × 291,840.40
  4. Step 4: Simplify right side
    572,467.60x = 250,402,039,972.08
  5. Step 5: Solve for x
    x = 250,402,039,972.08/572,467.60
  6. Step 6: Final answer
    x = 437,408.23

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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.