Home / 638,444.16-955,976.49-385,386.39

Finding the Fourth Proportional to 638,444.16, 955,976.49 and 385,386.39

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Solution

The fourth proportional to 638,444.16, 955,976.49 and 385,386.39 is: 577,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,444.16 : 955,976.49 = 385,386.39 : x
  2. Step 2: Convert to fraction form
    638,444.16/955,976.49 = 385,386.39/x
  3. Step 3: Cross multiply
    638,444.16x = 955,976.49 × 385,386.39
  4. Step 4: Simplify right side
    638,444.16x = 368,420,328,405.97
  5. Step 5: Solve for x
    x = 368,420,328,405.97/638,444.16
  6. Step 6: Final answer
    x = 577,059.60

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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.