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Finding the Fourth Proportional to 473,626.81, 653,614.40 and 258,780.18

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Solution

The fourth proportional to 473,626.81, 653,614.40 and 258,780.18 is: 357,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,626.81 : 653,614.40 = 258,780.18 : x
  2. Step 2: Convert to fraction form
    473,626.81/653,614.40 = 258,780.18/x
  3. Step 3: Cross multiply
    473,626.81x = 653,614.40 × 258,780.18
  4. Step 4: Simplify right side
    473,626.81x = 169,142,450,788.69
  5. Step 5: Solve for x
    x = 169,142,450,788.69/473,626.81
  6. Step 6: Final answer
    x = 357,121.79

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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.