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Finding the Fourth Proportional to 574,851.60, 862,277.40 and 518,864.40

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Solution

The fourth proportional to 574,851.60, 862,277.40 and 518,864.40 is: 778,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,851.60 : 862,277.40 = 518,864.40 : x
  2. Step 2: Convert to fraction form
    574,851.60/862,277.40 = 518,864.40/x
  3. Step 3: Cross multiply
    574,851.60x = 862,277.40 × 518,864.40
  4. Step 4: Simplify right side
    574,851.60x = 447,405,045,784.56
  5. Step 5: Solve for x
    x = 447,405,045,784.56/574,851.60
  6. Step 6: Final answer
    x = 778,296.60

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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.