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Finding the Fourth Proportional to 619,170.40, 927,563.20 and 525,443.68

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Solution

The fourth proportional to 619,170.40, 927,563.20 and 525,443.68 is: 787,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,170.40 : 927,563.20 = 525,443.68 : x
  2. Step 2: Convert to fraction form
    619,170.40/927,563.20 = 525,443.68/x
  3. Step 3: Cross multiply
    619,170.40x = 927,563.20 × 525,443.68
  4. Step 4: Simplify right side
    619,170.40x = 487,382,221,240.58
  5. Step 5: Solve for x
    x = 487,382,221,240.58/619,170.40
  6. Step 6: Final answer
    x = 787,153.62

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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.