Home / 915,178.91-1,262,799.92-575,406.59

Finding the Fourth Proportional to 915,178.91, 1,262,799.92 and 575,406.59

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Solution

The fourth proportional to 915,178.91, 1,262,799.92 and 575,406.59 is: 793,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,178.91 : 1,262,799.92 = 575,406.59 : x
  2. Step 2: Convert to fraction form
    915,178.91/1,262,799.92 = 575,406.59/x
  3. Step 3: Cross multiply
    915,178.91x = 1,262,799.92 × 575,406.59
  4. Step 4: Simplify right side
    915,178.91x = 726,623,390,943.99
  5. Step 5: Solve for x
    x = 726,623,390,943.99/915,178.91
  6. Step 6: Final answer
    x = 793,968.68

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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.