Home / 868,561.80-1,302,842.70-585,126.60

Finding the Fourth Proportional to 868,561.80, 1,302,842.70 and 585,126.60

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Solution

The fourth proportional to 868,561.80, 1,302,842.70 and 585,126.60 is: 877,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,561.80 : 1,302,842.70 = 585,126.60 : x
  2. Step 2: Convert to fraction form
    868,561.80/1,302,842.70 = 585,126.60/x
  3. Step 3: Cross multiply
    868,561.80x = 1,302,842.70 × 585,126.60
  4. Step 4: Simplify right side
    868,561.80x = 762,327,919,385.82
  5. Step 5: Solve for x
    x = 762,327,919,385.82/868,561.80
  6. Step 6: Final answer
    x = 877,689.90

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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.