Home / 778,686.60-1,168,418.70-441,985.80

Finding the Fourth Proportional to 778,686.60, 1,168,418.70 and 441,985.80

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Solution

The fourth proportional to 778,686.60, 1,168,418.70 and 441,985.80 is: 663,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,686.60 : 1,168,418.70 = 441,985.80 : x
  2. Step 2: Convert to fraction form
    778,686.60/1,168,418.70 = 441,985.80/x
  3. Step 3: Cross multiply
    778,686.60x = 1,168,418.70 × 441,985.80
  4. Step 4: Simplify right side
    778,686.60x = 516,424,473,854.46
  5. Step 5: Solve for x
    x = 516,424,473,854.46/778,686.60
  6. Step 6: Final answer
    x = 663,199.38

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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.