Home / 890,111.20-1,335,166.80-590,994.40

Finding the Fourth Proportional to 890,111.20, 1,335,166.80 and 590,994.40

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Solution

The fourth proportional to 890,111.20, 1,335,166.80 and 590,994.40 is: 886,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,111.20 : 1,335,166.80 = 590,994.40 : x
  2. Step 2: Convert to fraction form
    890,111.20/1,335,166.80 = 590,994.40/x
  3. Step 3: Cross multiply
    890,111.20x = 1,335,166.80 × 590,994.40
  4. Step 4: Simplify right side
    890,111.20x = 789,076,101,865.92
  5. Step 5: Solve for x
    x = 789,076,101,865.92/890,111.20
  6. Step 6: Final answer
    x = 886,491.60

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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.