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Finding the Fourth Proportional to 494,837.60, 742,256.40 and 437,756.90

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Solution

The fourth proportional to 494,837.60, 742,256.40 and 437,756.90 is: 656,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,837.60 : 742,256.40 = 437,756.90 : x
  2. Step 2: Convert to fraction form
    494,837.60/742,256.40 = 437,756.90/x
  3. Step 3: Cross multiply
    494,837.60x = 742,256.40 × 437,756.90
  4. Step 4: Simplify right side
    494,837.60x = 324,927,860,669.16
  5. Step 5: Solve for x
    x = 324,927,860,669.16/494,837.60
  6. Step 6: Final answer
    x = 656,635.35

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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.