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Finding the Fourth Proportional to 605,715.60, 908,573.40 and 368,936.40

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Solution

The fourth proportional to 605,715.60, 908,573.40 and 368,936.40 is: 553,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,715.60 : 908,573.40 = 368,936.40 : x
  2. Step 2: Convert to fraction form
    605,715.60/908,573.40 = 368,936.40/x
  3. Step 3: Cross multiply
    605,715.60x = 908,573.40 × 368,936.40
  4. Step 4: Simplify right side
    605,715.60x = 335,205,799,331.76
  5. Step 5: Solve for x
    x = 335,205,799,331.76/605,715.60
  6. Step 6: Final answer
    x = 553,404.60

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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.