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Finding the Fourth Proportional to 343,993.30, 514,823.55 and 302,002.90

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Solution

The fourth proportional to 343,993.30, 514,823.55 and 302,002.90 is: 451,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,993.30 : 514,823.55 = 302,002.90 : x
  2. Step 2: Convert to fraction form
    343,993.30/514,823.55 = 302,002.90/x
  3. Step 3: Cross multiply
    343,993.30x = 514,823.55 × 302,002.90
  4. Step 4: Simplify right side
    343,993.30x = 155,478,205,088.30
  5. Step 5: Solve for x
    x = 155,478,205,088.30/343,993.30
  6. Step 6: Final answer
    x = 451,980.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.