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Finding the Fourth Proportional to 576,214.58, 795,155.28 and 318,085.98

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Solution

The fourth proportional to 576,214.58, 795,155.28 and 318,085.98 is: 438,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,214.58 : 795,155.28 = 318,085.98 : x
  2. Step 2: Convert to fraction form
    576,214.58/795,155.28 = 318,085.98/x
  3. Step 3: Cross multiply
    576,214.58x = 795,155.28 × 318,085.98
  4. Step 4: Simplify right side
    576,214.58x = 252,927,746,789.07
  5. Step 5: Solve for x
    x = 252,927,746,789.07/576,214.58
  6. Step 6: Final answer
    x = 438,947.15

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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.