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Finding the Fourth Proportional to 453,792.20, 680,688.30 and 121,368.20

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Solution

The fourth proportional to 453,792.20, 680,688.30 and 121,368.20 is: 182,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,792.20 : 680,688.30 = 121,368.20 : x
  2. Step 2: Convert to fraction form
    453,792.20/680,688.30 = 121,368.20/x
  3. Step 3: Cross multiply
    453,792.20x = 680,688.30 × 121,368.20
  4. Step 4: Simplify right side
    453,792.20x = 82,613,913,732.06
  5. Step 5: Solve for x
    x = 82,613,913,732.06/453,792.20
  6. Step 6: Final answer
    x = 182,052.30

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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.