Home / 805,773.40-1,208,660.10-522,338.20

Finding the Fourth Proportional to 805,773.40, 1,208,660.10 and 522,338.20

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Solution

The fourth proportional to 805,773.40, 1,208,660.10 and 522,338.20 is: 783,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,773.40 : 1,208,660.10 = 522,338.20 : x
  2. Step 2: Convert to fraction form
    805,773.40/1,208,660.10 = 522,338.20/x
  3. Step 3: Cross multiply
    805,773.40x = 1,208,660.10 × 522,338.20
  4. Step 4: Simplify right side
    805,773.40x = 631,329,341,045.82
  5. Step 5: Solve for x
    x = 631,329,341,045.82/805,773.40
  6. Step 6: Final answer
    x = 783,507.30

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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.