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Finding the Fourth Proportional to 541,640.10, 812,460.15 and 455,034.90

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Solution

The fourth proportional to 541,640.10, 812,460.15 and 455,034.90 is: 682,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,640.10 : 812,460.15 = 455,034.90 : x
  2. Step 2: Convert to fraction form
    541,640.10/812,460.15 = 455,034.90/x
  3. Step 3: Cross multiply
    541,640.10x = 812,460.15 × 455,034.90
  4. Step 4: Simplify right side
    541,640.10x = 369,697,723,109.24
  5. Step 5: Solve for x
    x = 369,697,723,109.24/541,640.10
  6. Step 6: Final answer
    x = 682,552.35

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Double scale
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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.