Home / 830,082.60-1,246,290.30-515,154.60

Finding the Fourth Proportional to 830,082.60, 1,246,290.30 and 515,154.60

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Solution

The fourth proportional to 830,082.60, 1,246,290.30 and 515,154.60 is: 773,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,082.60 : 1,246,290.30 = 515,154.60 : x
  2. Step 2: Convert to fraction form
    830,082.60/1,246,290.30 = 515,154.60/x
  3. Step 3: Cross multiply
    830,082.60x = 1,246,290.30 × 515,154.60
  4. Step 4: Simplify right side
    830,082.60x = 642,032,180,980.38
  5. Step 5: Solve for x
    x = 642,032,180,980.38/830,082.60
  6. Step 6: Final answer
    x = 773,455.78

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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.