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Finding the Fourth Proportional to 492,274.82, 679,339.85 and 265,920.32

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Solution

The fourth proportional to 492,274.82, 679,339.85 and 265,920.32 is: 366,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,274.82 : 679,339.85 = 265,920.32 : x
  2. Step 2: Convert to fraction form
    492,274.82/679,339.85 = 265,920.32/x
  3. Step 3: Cross multiply
    492,274.82x = 679,339.85 × 265,920.32
  4. Step 4: Simplify right side
    492,274.82x = 180,650,266,904.05
  5. Step 5: Solve for x
    x = 180,650,266,904.05/492,274.82
  6. Step 6: Final answer
    x = 366,970.36

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1.5x scale

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.