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Finding the Fourth Proportional to 647,326.44, 893,693.22 and 575,507.70

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Solution

The fourth proportional to 647,326.44, 893,693.22 and 575,507.70 is: 794,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,326.44 : 893,693.22 = 575,507.70 : x
  2. Step 2: Convert to fraction form
    647,326.44/893,693.22 = 575,507.70/x
  3. Step 3: Cross multiply
    647,326.44x = 893,693.22 × 575,507.70
  4. Step 4: Simplify right side
    647,326.44x = 514,327,329,547.79
  5. Step 5: Solve for x
    x = 514,327,329,547.79/647,326.44
  6. Step 6: Final answer
    x = 794,540.90

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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.