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Finding the Fourth Proportional to 618,857, 854,022.66 and 350,585

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Solution

The fourth proportional to 618,857, 854,022.66 and 350,585 is: 483,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,857 : 854,022.66 = 350,585 : x
  2. Step 2: Convert to fraction form
    618,857/854,022.66 = 350,585/x
  3. Step 3: Cross multiply
    618,857x = 854,022.66 × 350,585
  4. Step 4: Simplify right side
    618,857x = 299,407,534,256.10
  5. Step 5: Solve for x
    x = 299,407,534,256.10/618,857
  6. Step 6: Final answer
    x = 483,807.30

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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.