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Finding the Fourth Proportional to 316,854.63, 437,259.42 and 189,560.25

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Solution

The fourth proportional to 316,854.63, 437,259.42 and 189,560.25 is: 261,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,854.63 : 437,259.42 = 189,560.25 : x
  2. Step 2: Convert to fraction form
    316,854.63/437,259.42 = 189,560.25/x
  3. Step 3: Cross multiply
    316,854.63x = 437,259.42 × 189,560.25
  4. Step 4: Simplify right side
    316,854.63x = 82,887,004,970.06
  5. Step 5: Solve for x
    x = 82,887,004,970.06/316,854.63
  6. Step 6: Final answer
    x = 261,593.16

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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.