Home / 521,567.40-782,351.10-166,617.30

Finding the Fourth Proportional to 521,567.40, 782,351.10 and 166,617.30

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Solution

The fourth proportional to 521,567.40, 782,351.10 and 166,617.30 is: 249,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567.40 : 782,351.10 = 166,617.30 : x
  2. Step 2: Convert to fraction form
    521,567.40/782,351.10 = 166,617.30/x
  3. Step 3: Cross multiply
    521,567.40x = 782,351.10 × 166,617.30
  4. Step 4: Simplify right side
    521,567.40x = 130,353,227,934.03
  5. Step 5: Solve for x
    x = 130,353,227,934.03/521,567.40
  6. Step 6: Final answer
    x = 249,925.95

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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.