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Finding the Fourth Proportional to 614,076.30, 921,114.45 and 435,617.10

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Solution

The fourth proportional to 614,076.30, 921,114.45 and 435,617.10 is: 653,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,076.30 : 921,114.45 = 435,617.10 : x
  2. Step 2: Convert to fraction form
    614,076.30/921,114.45 = 435,617.10/x
  3. Step 3: Cross multiply
    614,076.30x = 921,114.45 × 435,617.10
  4. Step 4: Simplify right side
    614,076.30x = 401,253,205,477.10
  5. Step 5: Solve for x
    x = 401,253,205,477.10/614,076.30
  6. Step 6: Final answer
    x = 653,425.65

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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.