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Finding the Fourth Proportional to 554,064.20, 829,022.70 and 367,440.20

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Solution

The fourth proportional to 554,064.20, 829,022.70 and 367,440.20 is: 549,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,064.20 : 829,022.70 = 367,440.20 : x
  2. Step 2: Convert to fraction form
    554,064.20/829,022.70 = 367,440.20/x
  3. Step 3: Cross multiply
    554,064.20x = 829,022.70 × 367,440.20
  4. Step 4: Simplify right side
    554,064.20x = 304,616,266,692.54
  5. Step 5: Solve for x
    x = 304,616,266,692.54/554,064.20
  6. Step 6: Final answer
    x = 549,785.15

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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.