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Finding the Fourth Proportional to 612,576.84, 918,864.72 and 191,885.52

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Solution

The fourth proportional to 612,576.84, 918,864.72 and 191,885.52 is: 287,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,576.84 : 918,864.72 = 191,885.52 : x
  2. Step 2: Convert to fraction form
    612,576.84/918,864.72 = 191,885.52/x
  3. Step 3: Cross multiply
    612,576.84x = 918,864.72 × 191,885.52
  4. Step 4: Simplify right side
    612,576.84x = 176,316,834,606.85
  5. Step 5: Solve for x
    x = 176,316,834,606.85/612,576.84
  6. Step 6: Final answer
    x = 287,828.11

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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.