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Finding the Fourth Proportional to 539,488.25, 809,271.26 and 207,064.25

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Solution

The fourth proportional to 539,488.25, 809,271.26 and 207,064.25 is: 310,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,488.25 : 809,271.26 = 207,064.25 : x
  2. Step 2: Convert to fraction form
    539,488.25/809,271.26 = 207,064.25/x
  3. Step 3: Cross multiply
    539,488.25x = 809,271.26 × 207,064.25
  4. Step 4: Simplify right side
    539,488.25x = 167,571,145,463.13
  5. Step 5: Solve for x
    x = 167,571,145,463.13/539,488.25
  6. Step 6: Final answer
    x = 310,611.30

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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.