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Finding the Fourth Proportional to 632,102.01, 872,301.05 and 345,624.45

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Solution

The fourth proportional to 632,102.01, 872,301.05 and 345,624.45 is: 476,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,102.01 : 872,301.05 = 345,624.45 : x
  2. Step 2: Convert to fraction form
    632,102.01/872,301.05 = 345,624.45/x
  3. Step 3: Cross multiply
    632,102.01x = 872,301.05 × 345,624.45
  4. Step 4: Simplify right side
    632,102.01x = 301,488,570,640.67
  5. Step 5: Solve for x
    x = 301,488,570,640.67/632,102.01
  6. Step 6: Final answer
    x = 476,961.89

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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.