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Finding the Fourth Proportional to 768,675.60, 1,153,013.40 and 532,479.60

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Solution

The fourth proportional to 768,675.60, 1,153,013.40 and 532,479.60 is: 798,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,675.60 : 1,153,013.40 = 532,479.60 : x
  2. Step 2: Convert to fraction form
    768,675.60/1,153,013.40 = 532,479.60/x
  3. Step 3: Cross multiply
    768,675.60x = 1,153,013.40 × 532,479.60
  4. Step 4: Simplify right side
    768,675.60x = 613,956,114,026.64
  5. Step 5: Solve for x
    x = 613,956,114,026.64/768,675.60
  6. Step 6: Final answer
    x = 798,719.40

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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.