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Finding the Fourth Proportional to 539,133.06, 808,699.59 and 165,107.46

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Solution

The fourth proportional to 539,133.06, 808,699.59 and 165,107.46 is: 247,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,133.06 : 808,699.59 = 165,107.46 : x
  2. Step 2: Convert to fraction form
    539,133.06/808,699.59 = 165,107.46/x
  3. Step 3: Cross multiply
    539,133.06x = 808,699.59 × 165,107.46
  4. Step 4: Simplify right side
    539,133.06x = 133,522,335,207.94
  5. Step 5: Solve for x
    x = 133,522,335,207.94/539,133.06
  6. Step 6: Final answer
    x = 247,661.19

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Double scale
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Similar ratio
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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.