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Finding the Fourth Proportional to 981,881.64, 1,354,838.82 and 552,136.08

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Solution

The fourth proportional to 981,881.64, 1,354,838.82 and 552,136.08 is: 761,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,881.64 : 1,354,838.82 = 552,136.08 : x
  2. Step 2: Convert to fraction form
    981,881.64/1,354,838.82 = 552,136.08/x
  3. Step 3: Cross multiply
    981,881.64x = 1,354,838.82 × 552,136.08
  4. Step 4: Simplify right side
    981,881.64x = 748,055,395,106.63
  5. Step 5: Solve for x
    x = 748,055,395,106.63/981,881.64
  6. Step 6: Final answer
    x = 761,859.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.