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Finding the Fourth Proportional to 313,274.55, 432,307.29 and 170,031.52

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Solution

The fourth proportional to 313,274.55, 432,307.29 and 170,031.52 is: 234,637.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,274.55 : 432,307.29 = 170,031.52 : x
  2. Step 2: Convert to fraction form
    313,274.55/432,307.29 = 170,031.52/x
  3. Step 3: Cross multiply
    313,274.55x = 432,307.29 × 170,031.52
  4. Step 4: Simplify right side
    313,274.55x = 73,505,865,625.78
  5. Step 5: Solve for x
    x = 73,505,865,625.78/313,274.55
  6. Step 6: Final answer
    x = 234,637.21

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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.