Home / 439,938.55-607,115.20-238,734.55

Finding the Fourth Proportional to 439,938.55, 607,115.20 and 238,734.55

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Solution

The fourth proportional to 439,938.55, 607,115.20 and 238,734.55 is: 329,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,938.55 : 607,115.20 = 238,734.55 : x
  2. Step 2: Convert to fraction form
    439,938.55/607,115.20 = 238,734.55/x
  3. Step 3: Cross multiply
    439,938.55x = 607,115.20 × 238,734.55
  4. Step 4: Simplify right side
    439,938.55x = 144,939,374,070.16
  5. Step 5: Solve for x
    x = 144,939,374,070.16/439,938.55
  6. Step 6: Final answer
    x = 329,453.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.