Home / 572,543.02-862,835.78-515,688.31

Finding the Fourth Proportional to 572,543.02, 862,835.78 and 515,688.31

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Solution

The fourth proportional to 572,543.02, 862,835.78 and 515,688.31 is: 777,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,543.02 : 862,835.78 = 515,688.31 : x
  2. Step 2: Convert to fraction form
    572,543.02/862,835.78 = 515,688.31/x
  3. Step 3: Cross multiply
    572,543.02x = 862,835.78 × 515,688.31
  4. Step 4: Simplify right side
    572,543.02x = 444,954,325,195.73
  5. Step 5: Solve for x
    x = 444,954,325,195.73/572,543.02
  6. Step 6: Final answer
    x = 777,154.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.