Home / 917,713.24-1,266,460.86-515,319.64

Finding the Fourth Proportional to 917,713.24, 1,266,460.86 and 515,319.64

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Solution

The fourth proportional to 917,713.24, 1,266,460.86 and 515,319.64 is: 711,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,713.24 : 1,266,460.86 = 515,319.64 : x
  2. Step 2: Convert to fraction form
    917,713.24/1,266,460.86 = 515,319.64/x
  3. Step 3: Cross multiply
    917,713.24x = 1,266,460.86 × 515,319.64
  4. Step 4: Simplify right side
    917,713.24x = 652,632,154,449.29
  5. Step 5: Solve for x
    x = 652,632,154,449.29/917,713.24
  6. Step 6: Final answer
    x = 711,150.42

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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.