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Finding the Fourth Proportional to 768,058.28, 1,152,088 and 262,623.08

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Solution

The fourth proportional to 768,058.28, 1,152,088 and 262,623.08 is: 393,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,058.28 : 1,152,088 = 262,623.08 : x
  2. Step 2: Convert to fraction form
    768,058.28/1,152,088 = 262,623.08/x
  3. Step 3: Cross multiply
    768,058.28x = 1,152,088 × 262,623.08
  4. Step 4: Simplify right side
    768,058.28x = 302,564,898,991.04
  5. Step 5: Solve for x
    x = 302,564,898,991.04/768,058.28
  6. Step 6: Final answer
    x = 393,934.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.