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Finding the Fourth Proportional to 605,817.40, 908,726.10 and 156,537.40

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Solution

The fourth proportional to 605,817.40, 908,726.10 and 156,537.40 is: 234,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,817.40 : 908,726.10 = 156,537.40 : x
  2. Step 2: Convert to fraction form
    605,817.40/908,726.10 = 156,537.40/x
  3. Step 3: Cross multiply
    605,817.40x = 908,726.10 × 156,537.40
  4. Step 4: Simplify right side
    605,817.40x = 142,249,621,006.14
  5. Step 5: Solve for x
    x = 142,249,621,006.14/605,817.40
  6. Step 6: Final answer
    x = 234,806.10

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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.