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Finding the Fourth Proportional to 1,266,468.40, 1,895,555.40 and 984,458.80

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Solution

The fourth proportional to 1,266,468.40, 1,895,555.40 and 984,458.80 is: 1,473,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,468.40 : 1,895,555.40 = 984,458.80 : x
  2. Step 2: Convert to fraction form
    1,266,468.40/1,895,555.40 = 984,458.80/x
  3. Step 3: Cross multiply
    1,266,468.40x = 1,895,555.40 × 984,458.80
  4. Step 4: Simplify right side
    1,266,468.40x = 1,866,096,194,417.52
  5. Step 5: Solve for x
    x = 1,866,096,194,417.52/1,266,468.40
  6. Step 6: Final answer
    x = 1,473,464.47

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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.