Home / 745,456.77-1,028,773.64-561,365.78

Finding the Fourth Proportional to 745,456.77, 1,028,773.64 and 561,365.78

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Solution

The fourth proportional to 745,456.77, 1,028,773.64 and 561,365.78 is: 774,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,456.77 : 1,028,773.64 = 561,365.78 : x
  2. Step 2: Convert to fraction form
    745,456.77/1,028,773.64 = 561,365.78/x
  3. Step 3: Cross multiply
    745,456.77x = 1,028,773.64 × 561,365.78
  4. Step 4: Simplify right side
    745,456.77x = 577,518,313,121.59
  5. Step 5: Solve for x
    x = 577,518,313,121.59/745,456.77
  6. Step 6: Final answer
    x = 774,717.38

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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.