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Finding the Fourth Proportional to 1,896,173.02, 2,616,729.72 and 1,036,733.28

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Solution

The fourth proportional to 1,896,173.02, 2,616,729.72 and 1,036,733.28 is: 1,430,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896,173.02 : 2,616,729.72 = 1,036,733.28 : x
  2. Step 2: Convert to fraction form
    1,896,173.02/2,616,729.72 = 1,036,733.28/x
  3. Step 3: Cross multiply
    1,896,173.02x = 2,616,729.72 × 1,036,733.28
  4. Step 4: Simplify right side
    1,896,173.02x = 2,712,850,785,489.08
  5. Step 5: Solve for x
    x = 2,712,850,785,489.08/1,896,173.02
  6. Step 6: Final answer
    x = 1,430,697.91

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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.