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Finding the Fourth Proportional to 559,054.72, 771,100.16 and 540,539.20

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Solution

The fourth proportional to 559,054.72, 771,100.16 and 540,539.20 is: 745,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,054.72 : 771,100.16 = 540,539.20 : x
  2. Step 2: Convert to fraction form
    559,054.72/771,100.16 = 540,539.20/x
  3. Step 3: Cross multiply
    559,054.72x = 771,100.16 × 540,539.20
  4. Step 4: Simplify right side
    559,054.72x = 416,809,863,606.27
  5. Step 5: Solve for x
    x = 416,809,863,606.27/559,054.72
  6. Step 6: Final answer
    x = 745,561.84

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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.