Home / 746,083.12-1,119,455.16-391,012.24

Finding the Fourth Proportional to 746,083.12, 1,119,455.16 and 391,012.24

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Solution

The fourth proportional to 746,083.12, 1,119,455.16 and 391,012.24 is: 586,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,083.12 : 1,119,455.16 = 391,012.24 : x
  2. Step 2: Convert to fraction form
    746,083.12/1,119,455.16 = 391,012.24/x
  3. Step 3: Cross multiply
    746,083.12x = 1,119,455.16 × 391,012.24
  4. Step 4: Simplify right side
    746,083.12x = 437,720,669,691.16
  5. Step 5: Solve for x
    x = 437,720,669,691.16/746,083.12
  6. Step 6: Final answer
    x = 586,691.56

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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.