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Finding the Fourth Proportional to 283,897.61, 391,787.45 and 163,063.13

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Solution

The fourth proportional to 283,897.61, 391,787.45 and 163,063.13 is: 225,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,897.61 : 391,787.45 = 163,063.13 : x
  2. Step 2: Convert to fraction form
    283,897.61/391,787.45 = 163,063.13/x
  3. Step 3: Cross multiply
    283,897.61x = 391,787.45 × 163,063.13
  4. Step 4: Simplify right side
    283,897.61x = 63,886,085,117.47
  5. Step 5: Solve for x
    x = 63,886,085,117.47/283,897.61
  6. Step 6: Final answer
    x = 225,032.14

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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.