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Finding the Fourth Proportional to 353,365.11, 487,656.86 and 202,491.27

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Solution

The fourth proportional to 353,365.11, 487,656.86 and 202,491.27 is: 279,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,365.11 : 487,656.86 = 202,491.27 : x
  2. Step 2: Convert to fraction form
    353,365.11/487,656.86 = 202,491.27/x
  3. Step 3: Cross multiply
    353,365.11x = 487,656.86 × 202,491.27
  4. Step 4: Simplify right side
    353,365.11x = 98,746,255,893.16
  5. Step 5: Solve for x
    x = 98,746,255,893.16/353,365.11
  6. Step 6: Final answer
    x = 279,445.40

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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.