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Finding the Fourth Proportional to 314,793.60, 472,190.40 and 283,689.60

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Solution

The fourth proportional to 314,793.60, 472,190.40 and 283,689.60 is: 425,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,793.60 : 472,190.40 = 283,689.60 : x
  2. Step 2: Convert to fraction form
    314,793.60/472,190.40 = 283,689.60/x
  3. Step 3: Cross multiply
    314,793.60x = 472,190.40 × 283,689.60
  4. Step 4: Simplify right side
    314,793.60x = 133,955,505,699.84
  5. Step 5: Solve for x
    x = 133,955,505,699.84/314,793.60
  6. Step 6: Final answer
    x = 425,534.40

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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.