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Finding the Fourth Proportional to 347,681.80, 521,522.70 and 170,216.20

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Solution

The fourth proportional to 347,681.80, 521,522.70 and 170,216.20 is: 255,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,681.80 : 521,522.70 = 170,216.20 : x
  2. Step 2: Convert to fraction form
    347,681.80/521,522.70 = 170,216.20/x
  3. Step 3: Cross multiply
    347,681.80x = 521,522.70 × 170,216.20
  4. Step 4: Simplify right side
    347,681.80x = 88,771,612,207.74
  5. Step 5: Solve for x
    x = 88,771,612,207.74/347,681.80
  6. Step 6: Final answer
    x = 255,324.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.