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Finding the Fourth Proportional to 782,893.80, 1,174,340.70 and 605,528.10

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Solution

The fourth proportional to 782,893.80, 1,174,340.70 and 605,528.10 is: 908,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,893.80 : 1,174,340.70 = 605,528.10 : x
  2. Step 2: Convert to fraction form
    782,893.80/1,174,340.70 = 605,528.10/x
  3. Step 3: Cross multiply
    782,893.80x = 1,174,340.70 × 605,528.10
  4. Step 4: Simplify right side
    782,893.80x = 711,096,292,823.67
  5. Step 5: Solve for x
    x = 711,096,292,823.67/782,893.80
  6. Step 6: Final answer
    x = 908,292.15

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Double scale
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Similar ratio
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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.