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Finding the Fourth Proportional to 575,269.39, 793,877.28 and 317,155.78

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Solution

The fourth proportional to 575,269.39, 793,877.28 and 317,155.78 is: 437,678.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,269.39 : 793,877.28 = 317,155.78 : x
  2. Step 2: Convert to fraction form
    575,269.39/793,877.28 = 317,155.78/x
  3. Step 3: Cross multiply
    575,269.39x = 793,877.28 × 317,155.78
  4. Step 4: Simplify right side
    575,269.39x = 251,782,766,424.91
  5. Step 5: Solve for x
    x = 251,782,766,424.91/575,269.39
  6. Step 6: Final answer
    x = 437,678.02

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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.