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Finding the Fourth Proportional to 656,740.80, 985,111.20 and 183,425.40

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Solution

The fourth proportional to 656,740.80, 985,111.20 and 183,425.40 is: 275,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,740.80 : 985,111.20 = 183,425.40 : x
  2. Step 2: Convert to fraction form
    656,740.80/985,111.20 = 183,425.40/x
  3. Step 3: Cross multiply
    656,740.80x = 985,111.20 × 183,425.40
  4. Step 4: Simplify right side
    656,740.80x = 180,694,415,904.48
  5. Step 5: Solve for x
    x = 180,694,415,904.48/656,740.80
  6. Step 6: Final answer
    x = 275,138.10

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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.