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Finding the Fourth Proportional to 379,818.12, 524,158.14 and 207,752.25

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Solution

The fourth proportional to 379,818.12, 524,158.14 and 207,752.25 is: 286,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,818.12 : 524,158.14 = 207,752.25 : x
  2. Step 2: Convert to fraction form
    379,818.12/524,158.14 = 207,752.25/x
  3. Step 3: Cross multiply
    379,818.12x = 524,158.14 × 207,752.25
  4. Step 4: Simplify right side
    379,818.12x = 108,895,032,940.82
  5. Step 5: Solve for x
    x = 108,895,032,940.82/379,818.12
  6. Step 6: Final answer
    x = 286,703.10

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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.