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Finding the Fourth Proportional to 617,897.60, 866,300.80 and 617,897.60

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Solution

The fourth proportional to 617,897.60, 866,300.80 and 617,897.60 is: 866,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,897.60 : 866,300.80 = 617,897.60 : x
  2. Step 2: Convert to fraction form
    617,897.60/866,300.80 = 617,897.60/x
  3. Step 3: Cross multiply
    617,897.60x = 866,300.80 × 617,897.60
  4. Step 4: Simplify right side
    617,897.60x = 535,285,185,198.08
  5. Step 5: Solve for x
    x = 535,285,185,198.08/617,897.60
  6. Step 6: Final answer
    x = 866,300.80

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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.