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Finding the Fourth Proportional to 472,335.76, 651,790.78 and 265,635.06

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Solution

The fourth proportional to 472,335.76, 651,790.78 and 265,635.06 is: 366,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,335.76 : 651,790.78 = 265,635.06 : x
  2. Step 2: Convert to fraction form
    472,335.76/651,790.78 = 265,635.06/x
  3. Step 3: Cross multiply
    472,335.76x = 651,790.78 × 265,635.06
  4. Step 4: Simplify right side
    472,335.76x = 173,138,482,952.75
  5. Step 5: Solve for x
    x = 173,138,482,952.75/472,335.76
  6. Step 6: Final answer
    x = 366,558.07

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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.