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Finding the Fourth Proportional to 895,494.80, 1,343,242.20 and 778,854.80

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Solution

The fourth proportional to 895,494.80, 1,343,242.20 and 778,854.80 is: 1,168,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,494.80 : 1,343,242.20 = 778,854.80 : x
  2. Step 2: Convert to fraction form
    895,494.80/1,343,242.20 = 778,854.80/x
  3. Step 3: Cross multiply
    895,494.80x = 1,343,242.20 × 778,854.80
  4. Step 4: Simplify right side
    895,494.80x = 1,046,190,635,032.56
  5. Step 5: Solve for x
    x = 1,046,190,635,032.56/895,494.80
  6. Step 6: Final answer
    x = 1,168,282.20

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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.