Home / 625,947.07-939,107.72-443,928.53

Finding the Fourth Proportional to 625,947.07, 939,107.72 and 443,928.53

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Solution

The fourth proportional to 625,947.07, 939,107.72 and 443,928.53 is: 666,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,947.07 : 939,107.72 = 443,928.53 : x
  2. Step 2: Convert to fraction form
    625,947.07/939,107.72 = 443,928.53/x
  3. Step 3: Cross multiply
    625,947.07x = 939,107.72 × 443,928.53
  4. Step 4: Simplify right side
    625,947.07x = 416,896,709,651.25
  5. Step 5: Solve for x
    x = 416,896,709,651.25/625,947.07
  6. Step 6: Final answer
    x = 666,025.50

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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.