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Finding the Fourth Proportional to 566,915.90, 849,207.45 and 389,623.10

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Solution

The fourth proportional to 566,915.90, 849,207.45 and 389,623.10 is: 583,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,915.90 : 849,207.45 = 389,623.10 : x
  2. Step 2: Convert to fraction form
    566,915.90/849,207.45 = 389,623.10/x
  3. Step 3: Cross multiply
    566,915.90x = 849,207.45 × 389,623.10
  4. Step 4: Simplify right side
    566,915.90x = 330,870,839,212.10
  5. Step 5: Solve for x
    x = 330,870,839,212.10/566,915.90
  6. Step 6: Final answer
    x = 583,633.02

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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.