Home / 705,022.60-972,932.39-403,216.60

Finding the Fourth Proportional to 705,022.60, 972,932.39 and 403,216.60

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Solution

The fourth proportional to 705,022.60, 972,932.39 and 403,216.60 is: 556,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,022.60 : 972,932.39 = 403,216.60 : x
  2. Step 2: Convert to fraction form
    705,022.60/972,932.39 = 403,216.60/x
  3. Step 3: Cross multiply
    705,022.60x = 972,932.39 × 403,216.60
  4. Step 4: Simplify right side
    705,022.60x = 392,302,488,901.38
  5. Step 5: Solve for x
    x = 392,302,488,901.38/705,022.60
  6. Step 6: Final answer
    x = 556,439.60

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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.