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Finding the Fourth Proportional to 306,726.10, 460,089.15 and 156,916.60

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Solution

The fourth proportional to 306,726.10, 460,089.15 and 156,916.60 is: 235,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,726.10 : 460,089.15 = 156,916.60 : x
  2. Step 2: Convert to fraction form
    306,726.10/460,089.15 = 156,916.60/x
  3. Step 3: Cross multiply
    306,726.10x = 460,089.15 × 156,916.60
  4. Step 4: Simplify right side
    306,726.10x = 72,195,625,114.89
  5. Step 5: Solve for x
    x = 72,195,625,114.89/306,726.10
  6. Step 6: Final answer
    x = 235,374.90

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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.