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Finding the Fourth Proportional to 730,521, 1,095,781.90 and 231,885

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Solution

The fourth proportional to 730,521, 1,095,781.90 and 231,885 is: 347,827.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,521 : 1,095,781.90 = 231,885 : x
  2. Step 2: Convert to fraction form
    730,521/1,095,781.90 = 231,885/x
  3. Step 3: Cross multiply
    730,521x = 1,095,781.90 × 231,885
  4. Step 4: Simplify right side
    730,521x = 254,095,385,881.50
  5. Step 5: Solve for x
    x = 254,095,385,881.50/730,521
  6. Step 6: Final answer
    x = 347,827.63

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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.