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Finding the Fourth Proportional to 614,135.60, 921,203.40 and 574,769.60

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Solution

The fourth proportional to 614,135.60, 921,203.40 and 574,769.60 is: 862,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,135.60 : 921,203.40 = 574,769.60 : x
  2. Step 2: Convert to fraction form
    614,135.60/921,203.40 = 574,769.60/x
  3. Step 3: Cross multiply
    614,135.60x = 921,203.40 × 574,769.60
  4. Step 4: Simplify right side
    614,135.60x = 529,479,709,736.64
  5. Step 5: Solve for x
    x = 529,479,709,736.64/614,135.60
  6. Step 6: Final answer
    x = 862,154.40

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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.