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Finding the Fourth Proportional to 1,197,845.84, 1,799,153.40 and 749,360.72

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Solution

The fourth proportional to 1,197,845.84, 1,799,153.40 and 749,360.72 is: 1,125,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,845.84 : 1,799,153.40 = 749,360.72 : x
  2. Step 2: Convert to fraction form
    1,197,845.84/1,799,153.40 = 749,360.72/x
  3. Step 3: Cross multiply
    1,197,845.84x = 1,799,153.40 × 749,360.72
  4. Step 4: Simplify right side
    1,197,845.84x = 1,348,214,887,214.45
  5. Step 5: Solve for x
    x = 1,348,214,887,214.45/1,197,845.84
  6. Step 6: Final answer
    x = 1,125,532.89

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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.