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Finding the Fourth Proportional to 614,440.40, 921,660.60 and 546,011.60

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Solution

The fourth proportional to 614,440.40, 921,660.60 and 546,011.60 is: 819,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,440.40 : 921,660.60 = 546,011.60 : x
  2. Step 2: Convert to fraction form
    614,440.40/921,660.60 = 546,011.60/x
  3. Step 3: Cross multiply
    614,440.40x = 921,660.60 × 546,011.60
  4. Step 4: Simplify right side
    614,440.40x = 503,237,378,862.96
  5. Step 5: Solve for x
    x = 503,237,378,862.96/614,440.40
  6. Step 6: Final answer
    x = 819,017.40

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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.