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Finding the Fourth Proportional to 618,844.50, 854,005.41 and 350,572.50

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Solution

The fourth proportional to 618,844.50, 854,005.41 and 350,572.50 is: 483,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,844.50 : 854,005.41 = 350,572.50 : x
  2. Step 2: Convert to fraction form
    618,844.50/854,005.41 = 350,572.50/x
  3. Step 3: Cross multiply
    618,844.50x = 854,005.41 × 350,572.50
  4. Step 4: Simplify right side
    618,844.50x = 299,390,811,597.23
  5. Step 5: Solve for x
    x = 299,390,811,597.23/618,844.50
  6. Step 6: Final answer
    x = 483,790.05

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1.5x scale

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.