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Finding the Fourth Proportional to 573,046.60, 857,820.30 and 447,075.40

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Solution

The fourth proportional to 573,046.60, 857,820.30 and 447,075.40 is: 669,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,046.60 : 857,820.30 = 447,075.40 : x
  2. Step 2: Convert to fraction form
    573,046.60/857,820.30 = 447,075.40/x
  3. Step 3: Cross multiply
    573,046.60x = 857,820.30 × 447,075.40
  4. Step 4: Simplify right side
    573,046.60x = 383,510,353,750.62
  5. Step 5: Solve for x
    x = 383,510,353,750.62/573,046.60
  6. Step 6: Final answer
    x = 669,248.11

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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.