Home / 779,301.60-1,168,952.40-639,218.40

Finding the Fourth Proportional to 779,301.60, 1,168,952.40 and 639,218.40

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Solution

The fourth proportional to 779,301.60, 1,168,952.40 and 639,218.40 is: 958,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,301.60 : 1,168,952.40 = 639,218.40 : x
  2. Step 2: Convert to fraction form
    779,301.60/1,168,952.40 = 639,218.40/x
  3. Step 3: Cross multiply
    779,301.60x = 1,168,952.40 × 639,218.40
  4. Step 4: Simplify right side
    779,301.60x = 747,215,882,804.16
  5. Step 5: Solve for x
    x = 747,215,882,804.16/779,301.60
  6. Step 6: Final answer
    x = 958,827.60

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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.