Home / 318,615.39-439,685.82-175,372.38

Finding the Fourth Proportional to 318,615.39, 439,685.82 and 175,372.38

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Solution

The fourth proportional to 318,615.39, 439,685.82 and 175,372.38 is: 242,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,615.39 : 439,685.82 = 175,372.38 : x
  2. Step 2: Convert to fraction form
    318,615.39/439,685.82 = 175,372.38/x
  3. Step 3: Cross multiply
    318,615.39x = 439,685.82 × 175,372.38
  4. Step 4: Simplify right side
    318,615.39x = 77,108,748,705.65
  5. Step 5: Solve for x
    x = 77,108,748,705.65/318,615.39
  6. Step 6: Final answer
    x = 242,012.00

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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.