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Finding the Fourth Proportional to 492,109.77, 679,111.53 and 265,755.27

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Solution

The fourth proportional to 492,109.77, 679,111.53 and 265,755.27 is: 366,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,109.77 : 679,111.53 = 265,755.27 : x
  2. Step 2: Convert to fraction form
    492,109.77/679,111.53 = 265,755.27/x
  3. Step 3: Cross multiply
    492,109.77x = 679,111.53 × 265,755.27
  4. Step 4: Simplify right side
    492,109.77x = 180,477,468,015.26
  5. Step 5: Solve for x
    x = 180,477,468,015.26/492,109.77
  6. Step 6: Final answer
    x = 366,742.30

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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.