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Finding the Fourth Proportional to 313,987.50, 433,341.99 and 179,851.50

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Solution

The fourth proportional to 313,987.50, 433,341.99 and 179,851.50 is: 248,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,987.50 : 433,341.99 = 179,851.50 : x
  2. Step 2: Convert to fraction form
    313,987.50/433,341.99 = 179,851.50/x
  3. Step 3: Cross multiply
    313,987.50x = 433,341.99 × 179,851.50
  4. Step 4: Simplify right side
    313,987.50x = 77,937,206,914.49
  5. Step 5: Solve for x
    x = 77,937,206,914.49/313,987.50
  6. Step 6: Final answer
    x = 248,217.55

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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.