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Finding the Fourth Proportional to 651,720.80, 977,532.60 and 272,543.60

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Solution

The fourth proportional to 651,720.80, 977,532.60 and 272,543.60 is: 408,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,720.80 : 977,532.60 = 272,543.60 : x
  2. Step 2: Convert to fraction form
    651,720.80/977,532.60 = 272,543.60/x
  3. Step 3: Cross multiply
    651,720.80x = 977,532.60 × 272,543.60
  4. Step 4: Simplify right side
    651,720.80x = 266,420,253,921.36
  5. Step 5: Solve for x
    x = 266,420,253,921.36/651,720.80
  6. Step 6: Final answer
    x = 408,795.08

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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.