Home / 438,128.85-604,636.19-247,142.19

Finding the Fourth Proportional to 438,128.85, 604,636.19 and 247,142.19

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Solution

The fourth proportional to 438,128.85, 604,636.19 and 247,142.19 is: 341,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,128.85 : 604,636.19 = 247,142.19 : x
  2. Step 2: Convert to fraction form
    438,128.85/604,636.19 = 247,142.19/x
  3. Step 3: Cross multiply
    438,128.85x = 604,636.19 × 247,142.19
  4. Step 4: Simplify right side
    438,128.85x = 149,431,112,149.86
  5. Step 5: Solve for x
    x = 149,431,112,149.86/438,128.85
  6. Step 6: Final answer
    x = 341,066.59

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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.