Home / 745,519.60-1,028,833.44-405,987.92

Finding the Fourth Proportional to 745,519.60, 1,028,833.44 and 405,987.92

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Solution

The fourth proportional to 745,519.60, 1,028,833.44 and 405,987.92 is: 560,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,519.60 : 1,028,833.44 = 405,987.92 : x
  2. Step 2: Convert to fraction form
    745,519.60/1,028,833.44 = 405,987.92/x
  3. Step 3: Cross multiply
    745,519.60x = 1,028,833.44 × 405,987.92
  4. Step 4: Simplify right side
    745,519.60x = 417,693,948,332.05
  5. Step 5: Solve for x
    x = 417,693,948,332.05/745,519.60
  6. Step 6: Final answer
    x = 560,272.26

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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.