Home / 897,265.20-1,346,135.40-391,609.20

Finding the Fourth Proportional to 897,265.20, 1,346,135.40 and 391,609.20

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Solution

The fourth proportional to 897,265.20, 1,346,135.40 and 391,609.20 is: 587,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,265.20 : 1,346,135.40 = 391,609.20 : x
  2. Step 2: Convert to fraction form
    897,265.20/1,346,135.40 = 391,609.20/x
  3. Step 3: Cross multiply
    897,265.20x = 1,346,135.40 × 391,609.20
  4. Step 4: Simplify right side
    897,265.20x = 527,159,007,085.68
  5. Step 5: Solve for x
    x = 527,159,007,085.68/897,265.20
  6. Step 6: Final answer
    x = 587,517.50

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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.