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Finding the Fourth Proportional to 552,916.42, 761,959.29 and 401,774.02

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Solution

The fourth proportional to 552,916.42, 761,959.29 and 401,774.02 is: 553,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,916.42 : 761,959.29 = 401,774.02 : x
  2. Step 2: Convert to fraction form
    552,916.42/761,959.29 = 401,774.02/x
  3. Step 3: Cross multiply
    552,916.42x = 761,959.29 × 401,774.02
  4. Step 4: Simplify right side
    552,916.42x = 306,135,447,019.65
  5. Step 5: Solve for x
    x = 306,135,447,019.65/552,916.42
  6. Step 6: Final answer
    x = 553,674.00

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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.