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Finding the Fourth Proportional to 897,692.15, 1,237,368.02 and 607,197.78

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Solution

The fourth proportional to 897,692.15, 1,237,368.02 and 607,197.78 is: 836,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,692.15 : 1,237,368.02 = 607,197.78 : x
  2. Step 2: Convert to fraction form
    897,692.15/1,237,368.02 = 607,197.78/x
  3. Step 3: Cross multiply
    897,692.15x = 1,237,368.02 × 607,197.78
  4. Step 4: Simplify right side
    897,692.15x = 751,327,111,751.01
  5. Step 5: Solve for x
    x = 751,327,111,751.01/897,692.15
  6. Step 6: Final answer
    x = 836,954.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.