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Finding the Fourth Proportional to 554,055.20, 829,009.20 and 367,431.20

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Solution

The fourth proportional to 554,055.20, 829,009.20 and 367,431.20 is: 549,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,055.20 : 829,009.20 = 367,431.20 : x
  2. Step 2: Convert to fraction form
    554,055.20/829,009.20 = 367,431.20/x
  3. Step 3: Cross multiply
    554,055.20x = 829,009.20 × 367,431.20
  4. Step 4: Simplify right side
    554,055.20x = 304,603,845,167.04
  5. Step 5: Solve for x
    x = 304,603,845,167.04/554,055.20
  6. Step 6: Final answer
    x = 549,771.66

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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.