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Finding the Fourth Proportional to 500,842.32, 750,931.30 and 163,764.87

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Solution

The fourth proportional to 500,842.32, 750,931.30 and 163,764.87 is: 245,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,842.32 : 750,931.30 = 163,764.87 : x
  2. Step 2: Convert to fraction form
    500,842.32/750,931.30 = 163,764.87/x
  3. Step 3: Cross multiply
    500,842.32x = 750,931.30 × 163,764.87
  4. Step 4: Simplify right side
    500,842.32x = 122,976,166,723.43
  5. Step 5: Solve for x
    x = 122,976,166,723.43/500,842.32
  6. Step 6: Final answer
    x = 245,538.69

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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.