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Finding the Fourth Proportional to 633,436.43, 874,156.47 and 361,498.91

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Solution

The fourth proportional to 633,436.43, 874,156.47 and 361,498.91 is: 498,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,436.43 : 874,156.47 = 361,498.91 : x
  2. Step 2: Convert to fraction form
    633,436.43/874,156.47 = 361,498.91/x
  3. Step 3: Cross multiply
    633,436.43x = 874,156.47 × 361,498.91
  4. Step 4: Simplify right side
    633,436.43x = 316,006,606,703.67
  5. Step 5: Solve for x
    x = 316,006,606,703.67/633,436.43
  6. Step 6: Final answer
    x = 498,876.59

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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.