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Finding the Fourth Proportional to 634,649.99, 875,945.91 and 430,766.61

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Solution

The fourth proportional to 634,649.99, 875,945.91 and 430,766.61 is: 594,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,649.99 : 875,945.91 = 430,766.61 : x
  2. Step 2: Convert to fraction form
    634,649.99/875,945.91 = 430,766.61/x
  3. Step 3: Cross multiply
    634,649.99x = 875,945.91 × 430,766.61
  4. Step 4: Simplify right side
    634,649.99x = 377,328,250,194.07
  5. Step 5: Solve for x
    x = 377,328,250,194.07/634,649.99
  6. Step 6: Final answer
    x = 594,545.43

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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.