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Finding the Fourth Proportional to 343,554.63, 515,334.69 and 141,098.57

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Solution

The fourth proportional to 343,554.63, 515,334.69 and 141,098.57 is: 211,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,554.63 : 515,334.69 = 141,098.57 : x
  2. Step 2: Convert to fraction form
    343,554.63/515,334.69 = 141,098.57/x
  3. Step 3: Cross multiply
    343,554.63x = 515,334.69 × 141,098.57
  4. Step 4: Simplify right side
    343,554.63x = 72,712,987,830.39
  5. Step 5: Solve for x
    x = 72,712,987,830.39/343,554.63
  6. Step 6: Final answer
    x = 211,648.98

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1.5x scale

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.