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Finding the Fourth Proportional to 453,721.70, 680,582.55 and 296,128.10

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Solution

The fourth proportional to 453,721.70, 680,582.55 and 296,128.10 is: 444,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,721.70 : 680,582.55 = 296,128.10 : x
  2. Step 2: Convert to fraction form
    453,721.70/680,582.55 = 296,128.10/x
  3. Step 3: Cross multiply
    453,721.70x = 680,582.55 × 296,128.10
  4. Step 4: Simplify right side
    453,721.70x = 201,539,617,424.66
  5. Step 5: Solve for x
    x = 201,539,617,424.66/453,721.70
  6. Step 6: Final answer
    x = 444,192.15

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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.