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Finding the Fourth Proportional to 295,752.20, 442,972.20 and 256,386.20

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Solution

The fourth proportional to 295,752.20, 442,972.20 and 256,386.20 is: 384,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,752.20 : 442,972.20 = 256,386.20 : x
  2. Step 2: Convert to fraction form
    295,752.20/442,972.20 = 256,386.20/x
  3. Step 3: Cross multiply
    295,752.20x = 442,972.20 × 256,386.20
  4. Step 4: Simplify right side
    295,752.20x = 113,571,959,063.64
  5. Step 5: Solve for x
    x = 113,571,959,063.64/295,752.20
  6. Step 6: Final answer
    x = 384,010.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.