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Finding the Fourth Proportional to 611,565.60, 917,348.40 and 605,660.70

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Solution

The fourth proportional to 611,565.60, 917,348.40 and 605,660.70 is: 908,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,565.60 : 917,348.40 = 605,660.70 : x
  2. Step 2: Convert to fraction form
    611,565.60/917,348.40 = 605,660.70/x
  3. Step 3: Cross multiply
    611,565.60x = 917,348.40 × 605,660.70
  4. Step 4: Simplify right side
    611,565.60x = 555,601,874,087.88
  5. Step 5: Solve for x
    x = 555,601,874,087.88/611,565.60
  6. Step 6: Final answer
    x = 908,491.05

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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.