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Finding the Fourth Proportional to 624,176.80, 936,265.20 and 561,191.20

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Solution

The fourth proportional to 624,176.80, 936,265.20 and 561,191.20 is: 841,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,176.80 : 936,265.20 = 561,191.20 : x
  2. Step 2: Convert to fraction form
    624,176.80/936,265.20 = 561,191.20/x
  3. Step 3: Cross multiply
    624,176.80x = 936,265.20 × 561,191.20
  4. Step 4: Simplify right side
    624,176.80x = 525,423,791,106.24
  5. Step 5: Solve for x
    x = 525,423,791,106.24/624,176.80
  6. Step 6: Final answer
    x = 841,786.80

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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.