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Finding the Fourth Proportional to 353,050.83, 487,335.06 and 209,809.17

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Solution

The fourth proportional to 353,050.83, 487,335.06 and 209,809.17 is: 289,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,050.83 : 487,335.06 = 209,809.17 : x
  2. Step 2: Convert to fraction form
    353,050.83/487,335.06 = 209,809.17/x
  3. Step 3: Cross multiply
    353,050.83x = 487,335.06 × 209,809.17
  4. Step 4: Simplify right side
    353,050.83x = 102,247,364,450.50
  5. Step 5: Solve for x
    x = 102,247,364,450.50/353,050.83
  6. Step 6: Final answer
    x = 289,610.89

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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.