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Finding the Fourth Proportional to 501,545.69, 692,133.06 and 286,690.41

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Solution

The fourth proportional to 501,545.69, 692,133.06 and 286,690.41 is: 395,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,545.69 : 692,133.06 = 286,690.41 : x
  2. Step 2: Convert to fraction form
    501,545.69/692,133.06 = 286,690.41/x
  3. Step 3: Cross multiply
    501,545.69x = 692,133.06 × 286,690.41
  4. Step 4: Simplify right side
    501,545.69x = 198,427,910,745.96
  5. Step 5: Solve for x
    x = 198,427,910,745.96/501,545.69
  6. Step 6: Final answer
    x = 395,632.77

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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.