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Finding the Fourth Proportional to 313,264.40, 432,300.68 and 170,023.20

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Solution

The fourth proportional to 313,264.40, 432,300.68 and 170,023.20 is: 234,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,264.40 : 432,300.68 = 170,023.20 : x
  2. Step 2: Convert to fraction form
    313,264.40/432,300.68 = 170,023.20/x
  3. Step 3: Cross multiply
    313,264.40x = 432,300.68 × 170,023.20
  4. Step 4: Simplify right side
    313,264.40x = 73,501,144,975.78
  5. Step 5: Solve for x
    x = 73,501,144,975.78/313,264.40
  6. Step 6: Final answer
    x = 234,629.74

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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.