Home / 1,528,840.80-2,293,261.20-391,600.80

Finding the Fourth Proportional to 1,528,840.80, 2,293,261.20 and 391,600.80

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Solution

The fourth proportional to 1,528,840.80, 2,293,261.20 and 391,600.80 is: 587,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,840.80 : 2,293,261.20 = 391,600.80 : x
  2. Step 2: Convert to fraction form
    1,528,840.80/2,293,261.20 = 391,600.80/x
  3. Step 3: Cross multiply
    1,528,840.80x = 2,293,261.20 × 391,600.80
  4. Step 4: Simplify right side
    1,528,840.80x = 898,042,920,528.96
  5. Step 5: Solve for x
    x = 898,042,920,528.96/1,528,840.80
  6. Step 6: Final answer
    x = 587,401.20

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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.