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Finding the Fourth Proportional to 617,950.40, 866,996.80 and 617,950.40

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Solution

The fourth proportional to 617,950.40, 866,996.80 and 617,950.40 is: 866,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,950.40 : 866,996.80 = 617,950.40 : x
  2. Step 2: Convert to fraction form
    617,950.40/866,996.80 = 617,950.40/x
  3. Step 3: Cross multiply
    617,950.40x = 866,996.80 × 617,950.40
  4. Step 4: Simplify right side
    617,950.40x = 535,761,019,358.72
  5. Step 5: Solve for x
    x = 535,761,019,358.72/617,950.40
  6. Step 6: Final answer
    x = 866,996.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.