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Finding the Fourth Proportional to 473,853.40, 653,908.04 and 258,995

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Solution

The fourth proportional to 473,853.40, 653,908.04 and 258,995 is: 357,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,853.40 : 653,908.04 = 258,995 : x
  2. Step 2: Convert to fraction form
    473,853.40/653,908.04 = 258,995/x
  3. Step 3: Cross multiply
    473,853.40x = 653,908.04 × 258,995
  4. Step 4: Simplify right side
    473,853.40x = 169,358,912,819.80
  5. Step 5: Solve for x
    x = 169,358,912,819.80/473,853.40
  6. Step 6: Final answer
    x = 357,407.82

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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.