Home / 805,562.20-1,209,276.90-432,314.20

Finding the Fourth Proportional to 805,562.20, 1,209,276.90 and 432,314.20

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Solution

The fourth proportional to 805,562.20, 1,209,276.90 and 432,314.20 is: 648,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,562.20 : 1,209,276.90 = 432,314.20 : x
  2. Step 2: Convert to fraction form
    805,562.20/1,209,276.90 = 432,314.20/x
  3. Step 3: Cross multiply
    805,562.20x = 1,209,276.90 × 432,314.20
  4. Step 4: Simplify right side
    805,562.20x = 522,787,575,601.98
  5. Step 5: Solve for x
    x = 522,787,575,601.98/805,562.20
  6. Step 6: Final answer
    x = 648,972.33

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Double scale
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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.