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Finding the Fourth Proportional to 556,431.84, 834,730.92 and 201,528.72

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Solution

The fourth proportional to 556,431.84, 834,730.92 and 201,528.72 is: 302,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,431.84 : 834,730.92 = 201,528.72 : x
  2. Step 2: Convert to fraction form
    556,431.84/834,730.92 = 201,528.72/x
  3. Step 3: Cross multiply
    556,431.84x = 834,730.92 × 201,528.72
  4. Step 4: Simplify right side
    556,431.84x = 168,222,253,852.02
  5. Step 5: Solve for x
    x = 168,222,253,852.02/556,431.84
  6. Step 6: Final answer
    x = 302,323.20

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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.