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Finding the Fourth Proportional to 622,901.70, 934,352.55 and 618,965.10

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Solution

The fourth proportional to 622,901.70, 934,352.55 and 618,965.10 is: 928,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,901.70 : 934,352.55 = 618,965.10 : x
  2. Step 2: Convert to fraction form
    622,901.70/934,352.55 = 618,965.10/x
  3. Step 3: Cross multiply
    622,901.70x = 934,352.55 × 618,965.10
  4. Step 4: Simplify right side
    622,901.70x = 578,331,619,546.01
  5. Step 5: Solve for x
    x = 578,331,619,546.01/622,901.70
  6. Step 6: Final answer
    x = 928,447.65

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Double scale
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Similar ratio
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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.