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Finding the Fourth Proportional to 573,278.58, 789,317.46 and 520,134.48

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Solution

The fourth proportional to 573,278.58, 789,317.46 and 520,134.48 is: 716,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,278.58 : 789,317.46 = 520,134.48 : x
  2. Step 2: Convert to fraction form
    573,278.58/789,317.46 = 520,134.48/x
  3. Step 3: Cross multiply
    573,278.58x = 789,317.46 × 520,134.48
  4. Step 4: Simplify right side
    573,278.58x = 410,551,226,612.02
  5. Step 5: Solve for x
    x = 410,551,226,612.02/573,278.58
  6. Step 6: Final answer
    x = 716,146.11

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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.