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Finding the Fourth Proportional to 318,274.97, 439,210.70 and 175,035

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Solution

The fourth proportional to 318,274.97, 439,210.70 and 175,035 is: 241,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,274.97 : 439,210.70 = 175,035 : x
  2. Step 2: Convert to fraction form
    318,274.97/439,210.70 = 175,035/x
  3. Step 3: Cross multiply
    318,274.97x = 439,210.70 × 175,035
  4. Step 4: Simplify right side
    318,274.97x = 76,877,243,999.33
  5. Step 5: Solve for x
    x = 76,877,243,999.33/318,274.97
  6. Step 6: Final answer
    x = 241,543.48

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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.