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Finding the Fourth Proportional to 673,019.58, 928,725.03 and 371,220.06

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Solution

The fourth proportional to 673,019.58, 928,725.03 and 371,220.06 is: 512,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,019.58 : 928,725.03 = 371,220.06 : x
  2. Step 2: Convert to fraction form
    673,019.58/928,725.03 = 371,220.06/x
  3. Step 3: Cross multiply
    673,019.58x = 928,725.03 × 371,220.06
  4. Step 4: Simplify right side
    673,019.58x = 344,761,361,360.10
  5. Step 5: Solve for x
    x = 344,761,361,360.10/673,019.58
  6. Step 6: Final answer
    x = 512,260.52

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.