Home / 694,854.18-958,818.20-388,947.69

Finding the Fourth Proportional to 694,854.18, 958,818.20 and 388,947.69

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Solution

The fourth proportional to 694,854.18, 958,818.20 and 388,947.69 is: 536,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,854.18 : 958,818.20 = 388,947.69 : x
  2. Step 2: Convert to fraction form
    694,854.18/958,818.20 = 388,947.69/x
  3. Step 3: Cross multiply
    694,854.18x = 958,818.20 × 388,947.69
  4. Step 4: Simplify right side
    694,854.18x = 372,930,122,075.22
  5. Step 5: Solve for x
    x = 372,930,122,075.22/694,854.18
  6. Step 6: Final answer
    x = 536,702.71

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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.