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Finding the Fourth Proportional to 515,238.96, 710,895.24 and 297,394.32

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Solution

The fourth proportional to 515,238.96, 710,895.24 and 297,394.32 is: 410,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,238.96 : 710,895.24 = 297,394.32 : x
  2. Step 2: Convert to fraction form
    515,238.96/710,895.24 = 297,394.32/x
  3. Step 3: Cross multiply
    515,238.96x = 710,895.24 × 297,394.32
  4. Step 4: Simplify right side
    515,238.96x = 211,416,206,491.04
  5. Step 5: Solve for x
    x = 211,416,206,491.04/515,238.96
  6. Step 6: Final answer
    x = 410,326.51

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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.