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Finding the Fourth Proportional to 1,842,397.32, 2,763,595.98 and 719,679

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Solution

The fourth proportional to 1,842,397.32, 2,763,595.98 and 719,679 is: 1,079,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842,397.32 : 2,763,595.98 = 719,679 : x
  2. Step 2: Convert to fraction form
    1,842,397.32/2,763,595.98 = 719,679/x
  3. Step 3: Cross multiply
    1,842,397.32x = 2,763,595.98 × 719,679
  4. Step 4: Simplify right side
    1,842,397.32x = 1,988,901,991,290.42
  5. Step 5: Solve for x
    x = 1,988,901,991,290.42/1,842,397.32
  6. Step 6: Final answer
    x = 1,079,518.50

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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.