Home / 936,439.85-1,404,123.24-287,847.16

Finding the Fourth Proportional to 936,439.85, 1,404,123.24 and 287,847.16

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Solution

The fourth proportional to 936,439.85, 1,404,123.24 and 287,847.16 is: 431,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,439.85 : 1,404,123.24 = 287,847.16 : x
  2. Step 2: Convert to fraction form
    936,439.85/1,404,123.24 = 287,847.16/x
  3. Step 3: Cross multiply
    936,439.85x = 1,404,123.24 × 287,847.16
  4. Step 4: Simplify right side
    936,439.85x = 404,172,886,924.00
  5. Step 5: Solve for x
    x = 404,172,886,924.00/936,439.85
  6. Step 6: Final answer
    x = 431,605.82

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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.