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Finding the Fourth Proportional to 605,141, 906,616.56 and 435,744.20

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Solution

The fourth proportional to 605,141, 906,616.56 and 435,744.20 is: 652,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,141 : 906,616.56 = 435,744.20 : x
  2. Step 2: Convert to fraction form
    605,141/906,616.56 = 435,744.20/x
  3. Step 3: Cross multiply
    605,141x = 906,616.56 × 435,744.20
  4. Step 4: Simplify right side
    605,141x = 395,052,907,643.95
  5. Step 5: Solve for x
    x = 395,052,907,643.95/605,141
  6. Step 6: Final answer
    x = 652,827.87

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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.