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Finding the Fourth Proportional to 614,126.10, 847,495.74 and 356,053.20

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Solution

The fourth proportional to 614,126.10, 847,495.74 and 356,053.20 is: 491,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,126.10 : 847,495.74 = 356,053.20 : x
  2. Step 2: Convert to fraction form
    614,126.10/847,495.74 = 356,053.20/x
  3. Step 3: Cross multiply
    614,126.10x = 847,495.74 × 356,053.20
  4. Step 4: Simplify right side
    614,126.10x = 301,753,570,213.37
  5. Step 5: Solve for x
    x = 301,753,570,213.37/614,126.10
  6. Step 6: Final answer
    x = 491,354.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.