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Finding the Fourth Proportional to 556,627.88, 768,095.70 and 314,932.52

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Solution

The fourth proportional to 556,627.88, 768,095.70 and 314,932.52 is: 434,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,627.88 : 768,095.70 = 314,932.52 : x
  2. Step 2: Convert to fraction form
    556,627.88/768,095.70 = 314,932.52/x
  3. Step 3: Cross multiply
    556,627.88x = 768,095.70 × 314,932.52
  4. Step 4: Simplify right side
    556,627.88x = 241,898,314,402.16
  5. Step 5: Solve for x
    x = 241,898,314,402.16/556,627.88
  6. Step 6: Final answer
    x = 434,578.15

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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.