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Finding the Fourth Proportional to 873.84, 1,206.04 and 524.60

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Solution

The fourth proportional to 873.84, 1,206.04 and 524.60 is: 724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.84 : 1,206.04 = 524.60 : x
  2. Step 2: Convert to fraction form
    873.84/1,206.04 = 524.60/x
  3. Step 3: Cross multiply
    873.84x = 1,206.04 × 524.60
  4. Step 4: Simplify right side
    873.84x = 632,688.58
  5. Step 5: Solve for x
    x = 632,688.58/873.84
  6. Step 6: Final answer
    x = 724.03

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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.