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Finding the Third Proportional to 315,211.50 and 473,148

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Solution

The third proportional to 315,211.50 and 473,148 is: 710,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,211.50 : 473,148 = 473,148 : x
  2. Step 2: Convert to fraction form
    315,211.50/473,148 = 473,148/x
  3. Step 3: Cross multiply
    315,211.50x = 473,148 × 473,148
  4. Step 4: Simplify right side
    315,211.50x = 223,869,029,904
  5. Step 5: Solve for x
    x = 223,869,029,904/315,211.50
  6. Step 6: Final answer
    x = 710,218.47

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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.