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Finding the Fourth Proportional to 864,687.60, 1,193,145.48 and 482,706

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Solution

The fourth proportional to 864,687.60, 1,193,145.48 and 482,706 is: 666,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,687.60 : 1,193,145.48 = 482,706 : x
  2. Step 2: Convert to fraction form
    864,687.60/1,193,145.48 = 482,706/x
  3. Step 3: Cross multiply
    864,687.60x = 1,193,145.48 × 482,706
  4. Step 4: Simplify right side
    864,687.60x = 575,938,482,068.88
  5. Step 5: Solve for x
    x = 575,938,482,068.88/864,687.60
  6. Step 6: Final answer
    x = 666,065.39

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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.