Home / 661,820.41-913,511.82-572,139.74

Finding the Fourth Proportional to 661,820.41, 913,511.82 and 572,139.74

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Solution

The fourth proportional to 661,820.41, 913,511.82 and 572,139.74 is: 789,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,820.41 : 913,511.82 = 572,139.74 : x
  2. Step 2: Convert to fraction form
    661,820.41/913,511.82 = 572,139.74/x
  3. Step 3: Cross multiply
    661,820.41x = 913,511.82 × 572,139.74
  4. Step 4: Simplify right side
    661,820.41x = 522,656,411,254.24
  5. Step 5: Solve for x
    x = 522,656,411,254.24/661,820.41
  6. Step 6: Final answer
    x = 789,725.44

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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.