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Finding the Fourth Proportional to 522,390.08, 783,934.63 and 189,966.08

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Solution

The fourth proportional to 522,390.08, 783,934.63 and 189,966.08 is: 285,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,390.08 : 783,934.63 = 189,966.08 : x
  2. Step 2: Convert to fraction form
    522,390.08/783,934.63 = 189,966.08/x
  3. Step 3: Cross multiply
    522,390.08x = 783,934.63 × 189,966.08
  4. Step 4: Simplify right side
    522,390.08x = 148,920,986,246.92
  5. Step 5: Solve for x
    x = 148,920,986,246.92/522,390.08
  6. Step 6: Final answer
    x = 285,076.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.