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Finding the Fourth Proportional to 552,307.34, 762,095.21 and 310,575.50

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Solution

The fourth proportional to 552,307.34, 762,095.21 and 310,575.50 is: 428,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,307.34 : 762,095.21 = 310,575.50 : x
  2. Step 2: Convert to fraction form
    552,307.34/762,095.21 = 310,575.50/x
  3. Step 3: Cross multiply
    552,307.34x = 762,095.21 × 310,575.50
  4. Step 4: Simplify right side
    552,307.34x = 236,688,100,893.36
  5. Step 5: Solve for x
    x = 236,688,100,893.36/552,307.34
  6. Step 6: Final answer
    x = 428,544.19

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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.