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Finding the Fourth Proportional to 532,135.61, 734,018.75 and 379,222.80

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Solution

The fourth proportional to 532,135.61, 734,018.75 and 379,222.80 is: 523,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,135.61 : 734,018.75 = 379,222.80 : x
  2. Step 2: Convert to fraction form
    532,135.61/734,018.75 = 379,222.80/x
  3. Step 3: Cross multiply
    532,135.61x = 734,018.75 × 379,222.80
  4. Step 4: Simplify right side
    532,135.61x = 278,356,644,740.51
  5. Step 5: Solve for x
    x = 278,356,644,740.51/532,135.61
  6. Step 6: Final answer
    x = 523,093.44

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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.