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Finding the Fourth Proportional to 604,843.20, 907,264.80 and 205,934.40

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Solution

The fourth proportional to 604,843.20, 907,264.80 and 205,934.40 is: 308,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,843.20 : 907,264.80 = 205,934.40 : x
  2. Step 2: Convert to fraction form
    604,843.20/907,264.80 = 205,934.40/x
  3. Step 3: Cross multiply
    604,843.20x = 907,264.80 × 205,934.40
  4. Step 4: Simplify right side
    604,843.20x = 186,837,032,229.12
  5. Step 5: Solve for x
    x = 186,837,032,229.12/604,843.20
  6. Step 6: Final answer
    x = 308,901.60

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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.