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Finding the Fourth Proportional to 607,126.80, 910,690.20 and 308,528.40

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Solution

The fourth proportional to 607,126.80, 910,690.20 and 308,528.40 is: 462,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,126.80 : 910,690.20 = 308,528.40 : x
  2. Step 2: Convert to fraction form
    607,126.80/910,690.20 = 308,528.40/x
  3. Step 3: Cross multiply
    607,126.80x = 910,690.20 × 308,528.40
  4. Step 4: Simplify right side
    607,126.80x = 280,973,790,301.68
  5. Step 5: Solve for x
    x = 280,973,790,301.68/607,126.80
  6. Step 6: Final answer
    x = 462,792.60

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Similar ratio
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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.