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Finding the Fourth Proportional to 583,430.20, 875,145.30 and 441,712.60

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Solution

The fourth proportional to 583,430.20, 875,145.30 and 441,712.60 is: 662,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,430.20 : 875,145.30 = 441,712.60 : x
  2. Step 2: Convert to fraction form
    583,430.20/875,145.30 = 441,712.60/x
  3. Step 3: Cross multiply
    583,430.20x = 875,145.30 × 441,712.60
  4. Step 4: Simplify right side
    583,430.20x = 386,562,705,840.78
  5. Step 5: Solve for x
    x = 386,562,705,840.78/583,430.20
  6. Step 6: Final answer
    x = 662,568.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.