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Finding the Fourth Proportional to 595,088.72, 820,861.80 and 353,211.92

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Solution

The fourth proportional to 595,088.72, 820,861.80 and 353,211.92 is: 487,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,088.72 : 820,861.80 = 353,211.92 : x
  2. Step 2: Convert to fraction form
    595,088.72/820,861.80 = 353,211.92/x
  3. Step 3: Cross multiply
    595,088.72x = 820,861.80 × 353,211.92
  4. Step 4: Simplify right side
    595,088.72x = 289,938,172,432.66
  5. Step 5: Solve for x
    x = 289,938,172,432.66/595,088.72
  6. Step 6: Final answer
    x = 487,218.40

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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.