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Finding the Fourth Proportional to 586,521.80, 879,607.20 and 305,885.96

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Solution

The fourth proportional to 586,521.80, 879,607.20 and 305,885.96 is: 458,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,521.80 : 879,607.20 = 305,885.96 : x
  2. Step 2: Convert to fraction form
    586,521.80/879,607.20 = 305,885.96/x
  3. Step 3: Cross multiply
    586,521.80x = 879,607.20 × 305,885.96
  4. Step 4: Simplify right side
    586,521.80x = 269,059,492,794.91
  5. Step 5: Solve for x
    x = 269,059,492,794.91/586,521.80
  6. Step 6: Final answer
    x = 458,737.41

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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.