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Finding the Fourth Proportional to 897,994, 1,347,212.94 and 266,905.18

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Solution

The fourth proportional to 897,994, 1,347,212.94 and 266,905.18 is: 400,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,994 : 1,347,212.94 = 266,905.18 : x
  2. Step 2: Convert to fraction form
    897,994/1,347,212.94 = 266,905.18/x
  3. Step 3: Cross multiply
    897,994x = 1,347,212.94 × 266,905.18
  4. Step 4: Simplify right side
    897,994x = 359,578,112,249.03
  5. Step 5: Solve for x
    x = 359,578,112,249.03/897,994
  6. Step 6: Final answer
    x = 400,423.74

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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.