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Finding the Fourth Proportional to 473,515.18, 653,426.59 and 258,613.72

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Solution

The fourth proportional to 473,515.18, 653,426.59 and 258,613.72 is: 356,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,515.18 : 653,426.59 = 258,613.72 : x
  2. Step 2: Convert to fraction form
    473,515.18/653,426.59 = 258,613.72/x
  3. Step 3: Cross multiply
    473,515.18x = 653,426.59 × 258,613.72
  4. Step 4: Simplify right side
    473,515.18x = 168,985,081,186.82
  5. Step 5: Solve for x
    x = 168,985,081,186.82/473,515.18
  6. Step 6: Final answer
    x = 356,873.63

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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.