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Finding the Fourth Proportional to 605,587.80, 908,381.70 and 572,928.60

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Solution

The fourth proportional to 605,587.80, 908,381.70 and 572,928.60 is: 859,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,587.80 : 908,381.70 = 572,928.60 : x
  2. Step 2: Convert to fraction form
    605,587.80/908,381.70 = 572,928.60/x
  3. Step 3: Cross multiply
    605,587.80x = 908,381.70 × 572,928.60
  4. Step 4: Simplify right side
    605,587.80x = 520,437,855,646.62
  5. Step 5: Solve for x
    x = 520,437,855,646.62/605,587.80
  6. Step 6: Final answer
    x = 859,392.90

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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.