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Finding the Fourth Proportional to 543,276.18, 749,641.20 and 301,560.60

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Solution

The fourth proportional to 543,276.18, 749,641.20 and 301,560.60 is: 416,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,276.18 : 749,641.20 = 301,560.60 : x
  2. Step 2: Convert to fraction form
    543,276.18/749,641.20 = 301,560.60/x
  3. Step 3: Cross multiply
    543,276.18x = 749,641.20 × 301,560.60
  4. Step 4: Simplify right side
    543,276.18x = 226,062,250,056.72
  5. Step 5: Solve for x
    x = 226,062,250,056.72/543,276.18
  6. Step 6: Final answer
    x = 416,109.26

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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.