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Finding the Fourth Proportional to 1,709,557.88, 2,369,978.34 and 1,618,549.52

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Solution

The fourth proportional to 1,709,557.88, 2,369,978.34 and 1,618,549.52 is: 2,243,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709,557.88 : 2,369,978.34 = 1,618,549.52 : x
  2. Step 2: Convert to fraction form
    1,709,557.88/2,369,978.34 = 1,618,549.52/x
  3. Step 3: Cross multiply
    1,709,557.88x = 2,369,978.34 × 1,618,549.52
  4. Step 4: Simplify right side
    1,709,557.88x = 3,835,927,304,617.40
  5. Step 5: Solve for x
    x = 3,835,927,304,617.40/1,709,557.88
  6. Step 6: Final answer
    x = 2,243,812.48

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.