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Finding the Fourth Proportional to 313,522.95, 432,661.35 and 170,283.11

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Solution

The fourth proportional to 313,522.95, 432,661.35 and 170,283.11 is: 234,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,522.95 : 432,661.35 = 170,283.11 : x
  2. Step 2: Convert to fraction form
    313,522.95/432,661.35 = 170,283.11/x
  3. Step 3: Cross multiply
    313,522.95x = 432,661.35 × 170,283.11
  4. Step 4: Simplify right side
    313,522.95x = 73,674,920,205.93
  5. Step 5: Solve for x
    x = 73,674,920,205.93/313,522.95
  6. Step 6: Final answer
    x = 234,990.51

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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.