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Finding the Fourth Proportional to 401,572.02, 554,164.21 and 229,488.02

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Solution

The fourth proportional to 401,572.02, 554,164.21 and 229,488.02 is: 316,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,572.02 : 554,164.21 = 229,488.02 : x
  2. Step 2: Convert to fraction form
    401,572.02/554,164.21 = 229,488.02/x
  3. Step 3: Cross multiply
    401,572.02x = 554,164.21 × 229,488.02
  4. Step 4: Simplify right side
    401,572.02x = 127,174,047,307.76
  5. Step 5: Solve for x
    x = 127,174,047,307.76/401,572.02
  6. Step 6: Final answer
    x = 316,690.51

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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.