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Finding the Fourth Proportional to 617,932.40, 866,971.60 and 617,932.40

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Solution

The fourth proportional to 617,932.40, 866,971.60 and 617,932.40 is: 866,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,932.40 : 866,971.60 = 617,932.40 : x
  2. Step 2: Convert to fraction form
    617,932.40/866,971.60 = 617,932.40/x
  3. Step 3: Cross multiply
    617,932.40x = 866,971.60 × 617,932.40
  4. Step 4: Simplify right side
    617,932.40x = 535,729,841,519.84
  5. Step 5: Solve for x
    x = 535,729,841,519.84/617,932.40
  6. Step 6: Final answer
    x = 866,971.60

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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.