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Finding the Fourth Proportional to 573,738.40, 860,780.40 and 307,626.40

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Solution

The fourth proportional to 573,738.40, 860,780.40 and 307,626.40 is: 461,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,738.40 : 860,780.40 = 307,626.40 : x
  2. Step 2: Convert to fraction form
    573,738.40/860,780.40 = 307,626.40/x
  3. Step 3: Cross multiply
    573,738.40x = 860,780.40 × 307,626.40
  4. Step 4: Simplify right side
    573,738.40x = 264,798,775,642.56
  5. Step 5: Solve for x
    x = 264,798,775,642.56/573,738.40
  6. Step 6: Final answer
    x = 461,532.25

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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.