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Finding the Fourth Proportional to 569,306.88, 785,635.20 and 343,077.12

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Solution

The fourth proportional to 569,306.88, 785,635.20 and 343,077.12 is: 473,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,306.88 : 785,635.20 = 343,077.12 : x
  2. Step 2: Convert to fraction form
    569,306.88/785,635.20 = 343,077.12/x
  3. Step 3: Cross multiply
    569,306.88x = 785,635.20 × 343,077.12
  4. Step 4: Simplify right side
    569,306.88x = 269,533,461,786.62
  5. Step 5: Solve for x
    x = 269,533,461,786.62/569,306.88
  6. Step 6: Final answer
    x = 473,441.43

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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.