Home / 859,097.60-1,286,896.80-438,610.40

Finding the Fourth Proportional to 859,097.60, 1,286,896.80 and 438,610.40

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Solution

The fourth proportional to 859,097.60, 1,286,896.80 and 438,610.40 is: 657,022.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,097.60 : 1,286,896.80 = 438,610.40 : x
  2. Step 2: Convert to fraction form
    859,097.60/1,286,896.80 = 438,610.40/x
  3. Step 3: Cross multiply
    859,097.60x = 1,286,896.80 × 438,610.40
  4. Step 4: Simplify right side
    859,097.60x = 564,446,320,206.72
  5. Step 5: Solve for x
    x = 564,446,320,206.72/859,097.60
  6. Step 6: Final answer
    x = 657,022.35

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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.