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Finding the Fourth Proportional to 618,841.50, 854,001.27 and 350,569.50

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Solution

The fourth proportional to 618,841.50, 854,001.27 and 350,569.50 is: 483,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,841.50 : 854,001.27 = 350,569.50 : x
  2. Step 2: Convert to fraction form
    618,841.50/854,001.27 = 350,569.50/x
  3. Step 3: Cross multiply
    618,841.50x = 854,001.27 × 350,569.50
  4. Step 4: Simplify right side
    618,841.50x = 299,386,798,223.27
  5. Step 5: Solve for x
    x = 299,386,798,223.27/618,841.50
  6. Step 6: Final answer
    x = 483,785.91

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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.