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Finding the Fourth Proportional to 488,531.20, 732,796.80 and 346,813.60

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Solution

The fourth proportional to 488,531.20, 732,796.80 and 346,813.60 is: 520,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,531.20 : 732,796.80 = 346,813.60 : x
  2. Step 2: Convert to fraction form
    488,531.20/732,796.80 = 346,813.60/x
  3. Step 3: Cross multiply
    488,531.20x = 732,796.80 × 346,813.60
  4. Step 4: Simplify right side
    488,531.20x = 254,143,896,276.48
  5. Step 5: Solve for x
    x = 254,143,896,276.48/488,531.20
  6. Step 6: Final answer
    x = 520,220.40

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Similar ratio
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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.