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Finding the Fourth Proportional to 502,003.60, 753,005.40 and 432,019.60

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Solution

The fourth proportional to 502,003.60, 753,005.40 and 432,019.60 is: 648,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,003.60 : 753,005.40 = 432,019.60 : x
  2. Step 2: Convert to fraction form
    502,003.60/753,005.40 = 432,019.60/x
  3. Step 3: Cross multiply
    502,003.60x = 753,005.40 × 432,019.60
  4. Step 4: Simplify right side
    502,003.60x = 325,313,091,705.84
  5. Step 5: Solve for x
    x = 325,313,091,705.84/502,003.60
  6. Step 6: Final answer
    x = 648,029.40

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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.