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Finding the Fourth Proportional to 1,880,410.80, 2,822,459.40 and 934,849.20

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Solution

The fourth proportional to 1,880,410.80, 2,822,459.40 and 934,849.20 is: 1,403,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880,410.80 : 2,822,459.40 = 934,849.20 : x
  2. Step 2: Convert to fraction form
    1,880,410.80/2,822,459.40 = 934,849.20/x
  3. Step 3: Cross multiply
    1,880,410.80x = 2,822,459.40 × 934,849.20
  4. Step 4: Simplify right side
    1,880,410.80x = 2,638,573,912,122.48
  5. Step 5: Solve for x
    x = 2,638,573,912,122.48/1,880,410.80
  6. Step 6: Final answer
    x = 1,403,190.15

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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.