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Finding the Fourth Proportional to 473,718.15, 653,732.69 and 258,858.20

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Solution

The fourth proportional to 473,718.15, 653,732.69 and 258,858.20 is: 357,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,718.15 : 653,732.69 = 258,858.20 : x
  2. Step 2: Convert to fraction form
    473,718.15/653,732.69 = 258,858.20/x
  3. Step 3: Cross multiply
    473,718.15x = 653,732.69 × 258,858.20
  4. Step 4: Simplify right side
    473,718.15x = 169,224,067,754.60
  5. Step 5: Solve for x
    x = 169,224,067,754.60/473,718.15
  6. Step 6: Final answer
    x = 357,225.21

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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.