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Finding the Fourth Proportional to 1,827,798.54, 2,522,440.80 and 1,012,002.20

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Solution

The fourth proportional to 1,827,798.54, 2,522,440.80 and 1,012,002.20 is: 1,396,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827,798.54 : 2,522,440.80 = 1,012,002.20 : x
  2. Step 2: Convert to fraction form
    1,827,798.54/2,522,440.80 = 1,012,002.20/x
  3. Step 3: Cross multiply
    1,827,798.54x = 2,522,440.80 × 1,012,002.20
  4. Step 4: Simplify right side
    1,827,798.54x = 2,552,715,638,969.76
  5. Step 5: Solve for x
    x = 2,552,715,638,969.76/1,827,798.54
  6. Step 6: Final answer
    x = 1,396,606.67

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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.