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Finding the Fourth Proportional to 349,345.10, 523,672.05 and 171,706.70

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Solution

The fourth proportional to 349,345.10, 523,672.05 and 171,706.70 is: 257,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,345.10 : 523,672.05 = 171,706.70 : x
  2. Step 2: Convert to fraction form
    349,345.10/523,672.05 = 171,706.70/x
  3. Step 3: Cross multiply
    349,345.10x = 523,672.05 × 171,706.70
  4. Step 4: Simplify right side
    349,345.10x = 89,917,999,587.74
  5. Step 5: Solve for x
    x = 89,917,999,587.74/349,345.10
  6. Step 6: Final answer
    x = 257,390.18

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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.