Home / 928,969.43-1,281,988.58-515,514.83

Finding the Fourth Proportional to 928,969.43, 1,281,988.58 and 515,514.83

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Solution

The fourth proportional to 928,969.43, 1,281,988.58 and 515,514.83 is: 711,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,969.43 : 1,281,988.58 = 515,514.83 : x
  2. Step 2: Convert to fraction form
    928,969.43/1,281,988.58 = 515,514.83/x
  3. Step 3: Cross multiply
    928,969.43x = 1,281,988.58 × 515,514.83
  4. Step 4: Simplify right side
    928,969.43x = 660,884,115,893.12
  5. Step 5: Solve for x
    x = 660,884,115,893.12/928,969.43
  6. Step 6: Final answer
    x = 711,416.43

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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.