Home / 928,953.47-1,281,889.96-515,512.46

Finding the Fourth Proportional to 928,953.47, 1,281,889.96 and 515,512.46

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Solution

The fourth proportional to 928,953.47, 1,281,889.96 and 515,512.46 is: 711,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,953.47 : 1,281,889.96 = 515,512.46 : x
  2. Step 2: Convert to fraction form
    928,953.47/1,281,889.96 = 515,512.46/x
  3. Step 3: Cross multiply
    928,953.47x = 1,281,889.96 × 515,512.46
  4. Step 4: Simplify right side
    928,953.47x = 660,830,248,644.85
  5. Step 5: Solve for x
    x = 660,830,248,644.85/928,953.47
  6. Step 6: Final answer
    x = 711,370.66

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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.