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Finding the Fourth Proportional to 235,513.90, 325,864.95 and 205,362.10

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Solution

The fourth proportional to 235,513.90, 325,864.95 and 205,362.10 is: 284,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,513.90 : 325,864.95 = 205,362.10 : x
  2. Step 2: Convert to fraction form
    235,513.90/325,864.95 = 205,362.10/x
  3. Step 3: Cross multiply
    235,513.90x = 325,864.95 × 205,362.10
  4. Step 4: Simplify right side
    235,513.90x = 66,920,310,448.40
  5. Step 5: Solve for x
    x = 66,920,310,448.40/235,513.90
  6. Step 6: Final answer
    x = 284,145.91

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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.