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Finding the Fourth Proportional to 402,246.40, 603,326.40 and 106,758.40

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Solution

The fourth proportional to 402,246.40, 603,326.40 and 106,758.40 is: 160,126.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,246.40 : 603,326.40 = 106,758.40 : x
  2. Step 2: Convert to fraction form
    402,246.40/603,326.40 = 106,758.40/x
  3. Step 3: Cross multiply
    402,246.40x = 603,326.40 × 106,758.40
  4. Step 4: Simplify right side
    402,246.40x = 64,410,161,141.76
  5. Step 5: Solve for x
    x = 64,410,161,141.76/402,246.40
  6. Step 6: Final answer
    x = 160,126.13

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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.