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Finding the Fourth Proportional to 647,297.39, 893,653.15 and 575,478.71

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Solution

The fourth proportional to 647,297.39, 893,653.15 and 575,478.71 is: 794,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,297.39 : 893,653.15 = 575,478.71 : x
  2. Step 2: Convert to fraction form
    647,297.39/893,653.15 = 575,478.71/x
  3. Step 3: Cross multiply
    647,297.39x = 893,653.15 × 575,478.71
  4. Step 4: Simplify right side
    647,297.39x = 514,278,356,042.47
  5. Step 5: Solve for x
    x = 514,278,356,042.47/647,297.39
  6. Step 6: Final answer
    x = 794,500.89

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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.