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Finding the Fourth Proportional to 416,857.12, 575,273.54 and 255,801.16

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Solution

The fourth proportional to 416,857.12, 575,273.54 and 255,801.16 is: 353,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,857.12 : 575,273.54 = 255,801.16 : x
  2. Step 2: Convert to fraction form
    416,857.12/575,273.54 = 255,801.16/x
  3. Step 3: Cross multiply
    416,857.12x = 575,273.54 × 255,801.16
  4. Step 4: Simplify right side
    416,857.12x = 147,155,638,849.31
  5. Step 5: Solve for x
    x = 147,155,638,849.31/416,857.12
  6. Step 6: Final answer
    x = 353,012.18

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1.5x scale

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.