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Finding the Fourth Proportional to 626,797.84, 865,693.20 and 422,496.40

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Solution

The fourth proportional to 626,797.84, 865,693.20 and 422,496.40 is: 583,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,797.84 : 865,693.20 = 422,496.40 : x
  2. Step 2: Convert to fraction form
    626,797.84/865,693.20 = 422,496.40/x
  3. Step 3: Cross multiply
    626,797.84x = 865,693.20 × 422,496.40
  4. Step 4: Simplify right side
    626,797.84x = 365,752,260,504.48
  5. Step 5: Solve for x
    x = 365,752,260,504.48/626,797.84
  6. Step 6: Final answer
    x = 583,525.08

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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.