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Finding the Fourth Proportional to 360,387.84, 497,252.55 and 215,165.33

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Solution

The fourth proportional to 360,387.84, 497,252.55 and 215,165.33 is: 296,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,387.84 : 497,252.55 = 215,165.33 : x
  2. Step 2: Convert to fraction form
    360,387.84/497,252.55 = 215,165.33/x
  3. Step 3: Cross multiply
    360,387.84x = 497,252.55 × 215,165.33
  4. Step 4: Simplify right side
    360,387.84x = 106,991,509,199.40
  5. Step 5: Solve for x
    x = 106,991,509,199.40/360,387.84
  6. Step 6: Final answer
    x = 296,878.80

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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.