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Finding the Fourth Proportional to 577,798.60, 866,566.68 and 278,126.14

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Solution

The fourth proportional to 577,798.60, 866,566.68 and 278,126.14 is: 417,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,798.60 : 866,566.68 = 278,126.14 : x
  2. Step 2: Convert to fraction form
    577,798.60/866,566.68 = 278,126.14/x
  3. Step 3: Cross multiply
    577,798.60x = 866,566.68 × 278,126.14
  4. Step 4: Simplify right side
    577,798.60x = 241,014,845,761.02
  5. Step 5: Solve for x
    x = 241,014,845,761.02/577,798.60
  6. Step 6: Final answer
    x = 417,126.05

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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.