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Finding the Fourth Proportional to 532,855.20, 735,331.58 and 291,132.60

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Solution

The fourth proportional to 532,855.20, 735,331.58 and 291,132.60 is: 401,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,855.20 : 735,331.58 = 291,132.60 : x
  2. Step 2: Convert to fraction form
    532,855.20/735,331.58 = 291,132.60/x
  3. Step 3: Cross multiply
    532,855.20x = 735,331.58 × 291,132.60
  4. Step 4: Simplify right side
    532,855.20x = 214,078,994,747.51
  5. Step 5: Solve for x
    x = 214,078,994,747.51/532,855.20
  6. Step 6: Final answer
    x = 401,758.29

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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.