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Finding the Fourth Proportional to 310,549.80, 465,824.70 and 258,061.80

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Solution

The fourth proportional to 310,549.80, 465,824.70 and 258,061.80 is: 387,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,549.80 : 465,824.70 = 258,061.80 : x
  2. Step 2: Convert to fraction form
    310,549.80/465,824.70 = 258,061.80/x
  3. Step 3: Cross multiply
    310,549.80x = 465,824.70 × 258,061.80
  4. Step 4: Simplify right side
    310,549.80x = 120,211,560,566.46
  5. Step 5: Solve for x
    x = 120,211,560,566.46/310,549.80
  6. Step 6: Final answer
    x = 387,092.70

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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.