Home / 818,153.70-1,129,189.77-527,683.62

Finding the Fourth Proportional to 818,153.70, 1,129,189.77 and 527,683.62

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Solution

The fourth proportional to 818,153.70, 1,129,189.77 and 527,683.62 is: 728,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,153.70 : 1,129,189.77 = 527,683.62 : x
  2. Step 2: Convert to fraction form
    818,153.70/1,129,189.77 = 527,683.62/x
  3. Step 3: Cross multiply
    818,153.70x = 1,129,189.77 × 527,683.62
  4. Step 4: Simplify right side
    818,153.70x = 595,854,945,500.57
  5. Step 5: Solve for x
    x = 595,854,945,500.57/818,153.70
  6. Step 6: Final answer
    x = 728,292.18

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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.