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Finding the Fourth Proportional to 500,445.64, 750,690.90 and 163,506.88

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Solution

The fourth proportional to 500,445.64, 750,690.90 and 163,506.88 is: 245,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,445.64 : 750,690.90 = 163,506.88 : x
  2. Step 2: Convert to fraction form
    500,445.64/750,690.90 = 163,506.88/x
  3. Step 3: Cross multiply
    500,445.64x = 750,690.90 × 163,506.88
  4. Step 4: Simplify right side
    500,445.64x = 122,743,126,903.39
  5. Step 5: Solve for x
    x = 122,743,126,903.39/500,445.64
  6. Step 6: Final answer
    x = 245,267.65

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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.