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Finding the Fourth Proportional to 618,278.59, 857,589.63 and 601,890.67

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Solution

The fourth proportional to 618,278.59, 857,589.63 and 601,890.67 is: 834,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,278.59 : 857,589.63 = 601,890.67 : x
  2. Step 2: Convert to fraction form
    618,278.59/857,589.63 = 601,890.67/x
  3. Step 3: Cross multiply
    618,278.59x = 857,589.63 × 601,890.67
  4. Step 4: Simplify right side
    618,278.59x = 516,175,196,985.75
  5. Step 5: Solve for x
    x = 516,175,196,985.75/618,278.59
  6. Step 6: Final answer
    x = 834,858.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.