Home / 1,151,617.76-1,589,234.76-642,353.12

Finding the Fourth Proportional to 1,151,617.76, 1,589,234.76 and 642,353.12

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Solution

The fourth proportional to 1,151,617.76, 1,589,234.76 and 642,353.12 is: 886,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,617.76 : 1,589,234.76 = 642,353.12 : x
  2. Step 2: Convert to fraction form
    1,151,617.76/1,589,234.76 = 642,353.12/x
  3. Step 3: Cross multiply
    1,151,617.76x = 1,589,234.76 × 642,353.12
  4. Step 4: Simplify right side
    1,151,617.76x = 1,020,849,906,498.45
  5. Step 5: Solve for x
    x = 1,020,849,906,498.45/1,151,617.76
  6. Step 6: Final answer
    x = 886,448.56

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.