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Finding the Fourth Proportional to 343,551.63, 515,330.18 and 141,095.58

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Solution

The fourth proportional to 343,551.63, 515,330.18 and 141,095.58 is: 211,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,551.63 : 515,330.18 = 141,095.58 : x
  2. Step 2: Convert to fraction form
    343,551.63/515,330.18 = 141,095.58/x
  3. Step 3: Cross multiply
    343,551.63x = 515,330.18 × 141,095.58
  4. Step 4: Simplify right side
    343,551.63x = 72,710,810,638.60
  5. Step 5: Solve for x
    x = 72,710,810,638.60/343,551.63
  6. Step 6: Final answer
    x = 211,644.49

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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.