Home / 818,135.24-1,128,639.02-531,550.76

Finding the Fourth Proportional to 818,135.24, 1,128,639.02 and 531,550.76

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Solution

The fourth proportional to 818,135.24, 1,128,639.02 and 531,550.76 is: 733,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,135.24 : 1,128,639.02 = 531,550.76 : x
  2. Step 2: Convert to fraction form
    818,135.24/1,128,639.02 = 531,550.76/x
  3. Step 3: Cross multiply
    818,135.24x = 1,128,639.02 × 531,550.76
  4. Step 4: Simplify right side
    818,135.24x = 599,928,920,545.71
  5. Step 5: Solve for x
    x = 599,928,920,545.71/818,135.24
  6. Step 6: Final answer
    x = 733,288.21

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Double scale
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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.