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Finding the Fourth Proportional to 566,915.40, 849,206.70 and 389,622.60

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Solution

The fourth proportional to 566,915.40, 849,206.70 and 389,622.60 is: 583,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,915.40 : 849,206.70 = 389,622.60 : x
  2. Step 2: Convert to fraction form
    566,915.40/849,206.70 = 389,622.60/x
  3. Step 3: Cross multiply
    566,915.40x = 849,206.70 × 389,622.60
  4. Step 4: Simplify right side
    566,915.40x = 330,870,122,391.42
  5. Step 5: Solve for x
    x = 330,870,122,391.42/566,915.40
  6. Step 6: Final answer
    x = 583,632.27

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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.