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Finding the Fourth Proportional to 540,058.16, 745,323.86 and 298,361.86

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Solution

The fourth proportional to 540,058.16, 745,323.86 and 298,361.86 is: 411,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,058.16 : 745,323.86 = 298,361.86 : x
  2. Step 2: Convert to fraction form
    540,058.16/745,323.86 = 298,361.86/x
  3. Step 3: Cross multiply
    540,058.16x = 745,323.86 × 298,361.86
  4. Step 4: Simplify right side
    540,058.16x = 222,376,213,171.98
  5. Step 5: Solve for x
    x = 222,376,213,171.98/540,058.16
  6. Step 6: Final answer
    x = 411,763.45

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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.