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Finding the Fourth Proportional to 493,355.60, 680,830.78 and 267,001.10

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Solution

The fourth proportional to 493,355.60, 680,830.78 and 267,001.10 is: 368,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,355.60 : 680,830.78 = 267,001.10 : x
  2. Step 2: Convert to fraction form
    493,355.60/680,830.78 = 267,001.10/x
  3. Step 3: Cross multiply
    493,355.60x = 680,830.78 × 267,001.10
  4. Step 4: Simplify right side
    493,355.60x = 181,782,567,173.86
  5. Step 5: Solve for x
    x = 181,782,567,173.86/493,355.60
  6. Step 6: Final answer
    x = 368,461.55

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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.