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Finding the Fourth Proportional to 624,144.80, 936,217.20 and 561,159.20

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Solution

The fourth proportional to 624,144.80, 936,217.20 and 561,159.20 is: 841,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,144.80 : 936,217.20 = 561,159.20 : x
  2. Step 2: Convert to fraction form
    624,144.80/936,217.20 = 561,159.20/x
  3. Step 3: Cross multiply
    624,144.80x = 936,217.20 × 561,159.20
  4. Step 4: Simplify right side
    624,144.80x = 525,366,894,978.24
  5. Step 5: Solve for x
    x = 525,366,894,978.24/624,144.80
  6. Step 6: Final answer
    x = 841,738.80

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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.