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Finding the Fourth Proportional to 377,092.16, 520,356.40 and 222,018.98

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Solution

The fourth proportional to 377,092.16, 520,356.40 and 222,018.98 is: 306,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,092.16 : 520,356.40 = 222,018.98 : x
  2. Step 2: Convert to fraction form
    377,092.16/520,356.40 = 222,018.98/x
  3. Step 3: Cross multiply
    377,092.16x = 520,356.40 × 222,018.98
  4. Step 4: Simplify right side
    377,092.16x = 115,528,995,256.50
  5. Step 5: Solve for x
    x = 115,528,995,256.50/377,092.16
  6. Step 6: Final answer
    x = 306,368.07

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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.