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Finding the Fourth Proportional to 450,086.76, 621,184.95 and 259,098.48

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Solution

The fourth proportional to 450,086.76, 621,184.95 and 259,098.48 is: 357,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,086.76 : 621,184.95 = 259,098.48 : x
  2. Step 2: Convert to fraction form
    450,086.76/621,184.95 = 259,098.48/x
  3. Step 3: Cross multiply
    450,086.76x = 621,184.95 × 259,098.48
  4. Step 4: Simplify right side
    450,086.76x = 160,948,076,343.88
  5. Step 5: Solve for x
    x = 160,948,076,343.88/450,086.76
  6. Step 6: Final answer
    x = 357,593.45

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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.