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Finding the Fourth Proportional to 343,881.90, 514,838.70 and 304,515.90

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Solution

The fourth proportional to 343,881.90, 514,838.70 and 304,515.90 is: 455,902.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,881.90 : 514,838.70 = 304,515.90 : x
  2. Step 2: Convert to fraction form
    343,881.90/514,838.70 = 304,515.90/x
  3. Step 3: Cross multiply
    343,881.90x = 514,838.70 × 304,515.90
  4. Step 4: Simplify right side
    343,881.90x = 156,776,570,085.33
  5. Step 5: Solve for x
    x = 156,776,570,085.33/343,881.90
  6. Step 6: Final answer
    x = 455,902.36

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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.