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Finding the Fourth Proportional to 379,805.96, 524,118.48 and 207,718.04

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Solution

The fourth proportional to 379,805.96, 524,118.48 and 207,718.04 is: 286,643.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,805.96 : 524,118.48 = 207,718.04 : x
  2. Step 2: Convert to fraction form
    379,805.96/524,118.48 = 207,718.04/x
  3. Step 3: Cross multiply
    379,805.96x = 524,118.48 × 207,718.04
  4. Step 4: Simplify right side
    379,805.96x = 108,868,863,393.38
  5. Step 5: Solve for x
    x = 108,868,863,393.38/379,805.96
  6. Step 6: Final answer
    x = 286,643.38

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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.