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Finding the Fourth Proportional to 708,238.38, 977,367.45 and 385,947.70

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Solution

The fourth proportional to 708,238.38, 977,367.45 and 385,947.70 is: 532,607.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,238.38 : 977,367.45 = 385,947.70 : x
  2. Step 2: Convert to fraction form
    708,238.38/977,367.45 = 385,947.70/x
  3. Step 3: Cross multiply
    708,238.38x = 977,367.45 × 385,947.70
  4. Step 4: Simplify right side
    708,238.38x = 377,212,719,382.37
  5. Step 5: Solve for x
    x = 377,212,719,382.37/708,238.38
  6. Step 6: Final answer
    x = 532,607.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.