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Finding the Fourth Proportional to 539,941.14, 809,911.71 and 207,283.86

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Solution

The fourth proportional to 539,941.14, 809,911.71 and 207,283.86 is: 310,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,941.14 : 809,911.71 = 207,283.86 : x
  2. Step 2: Convert to fraction form
    539,941.14/809,911.71 = 207,283.86/x
  3. Step 3: Cross multiply
    539,941.14x = 809,911.71 × 207,283.86
  4. Step 4: Simplify right side
    539,941.14x = 167,881,625,508.00
  5. Step 5: Solve for x
    x = 167,881,625,508.00/539,941.14
  6. Step 6: Final answer
    x = 310,925.79

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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.