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Finding the Fourth Proportional to 1,419,547, 1,958,956.98 and 807,697.84

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Solution

The fourth proportional to 1,419,547, 1,958,956.98 and 807,697.84 is: 1,114,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,547 : 1,958,956.98 = 807,697.84 : x
  2. Step 2: Convert to fraction form
    1,419,547/1,958,956.98 = 807,697.84/x
  3. Step 3: Cross multiply
    1,419,547x = 1,958,956.98 × 807,697.84
  4. Step 4: Simplify right side
    1,419,547x = 1,582,245,321,398.92
  5. Step 5: Solve for x
    x = 1,582,245,321,398.92/1,419,547
  6. Step 6: Final answer
    x = 1,114,612.85

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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.