Home / 385,040.10-577,348.73-118,726.68

Finding the Fourth Proportional to 385,040.10, 577,348.73 and 118,726.68

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Solution

The fourth proportional to 385,040.10, 577,348.73 and 118,726.68 is: 178,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,040.10 : 577,348.73 = 118,726.68 : x
  2. Step 2: Convert to fraction form
    385,040.10/577,348.73 = 118,726.68/x
  3. Step 3: Cross multiply
    385,040.10x = 577,348.73 × 118,726.68
  4. Step 4: Simplify right side
    385,040.10x = 68,546,697,915.12
  5. Step 5: Solve for x
    x = 68,546,697,915.12/385,040.10
  6. Step 6: Final answer
    x = 178,024.83

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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.