Home / 781,601.60-1,172,402.40-515,662.40

Finding the Fourth Proportional to 781,601.60, 1,172,402.40 and 515,662.40

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Solution

The fourth proportional to 781,601.60, 1,172,402.40 and 515,662.40 is: 773,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,601.60 : 1,172,402.40 = 515,662.40 : x
  2. Step 2: Convert to fraction form
    781,601.60/1,172,402.40 = 515,662.40/x
  3. Step 3: Cross multiply
    781,601.60x = 1,172,402.40 × 515,662.40
  4. Step 4: Simplify right side
    781,601.60x = 604,563,835,349.76
  5. Step 5: Solve for x
    x = 604,563,835,349.76/781,601.60
  6. Step 6: Final answer
    x = 773,493.60

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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.