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Finding the Fourth Proportional to 1,266,127.04, 1,899,657.12 and 667,064

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Solution

The fourth proportional to 1,266,127.04, 1,899,657.12 and 667,064 is: 1,000,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,127.04 : 1,899,657.12 = 667,064 : x
  2. Step 2: Convert to fraction form
    1,266,127.04/1,899,657.12 = 667,064/x
  3. Step 3: Cross multiply
    1,266,127.04x = 1,899,657.12 × 667,064
  4. Step 4: Simplify right side
    1,266,127.04x = 1,267,192,877,095.68
  5. Step 5: Solve for x
    x = 1,267,192,877,095.68/1,266,127.04
  6. Step 6: Final answer
    x = 1,000,841.81

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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.