Home / 930,841.40-1,395,431.04-398,088.20

Finding the Fourth Proportional to 930,841.40, 1,395,431.04 and 398,088.20

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Solution

The fourth proportional to 930,841.40, 1,395,431.04 and 398,088.20 is: 596,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,841.40 : 1,395,431.04 = 398,088.20 : x
  2. Step 2: Convert to fraction form
    930,841.40/1,395,431.04 = 398,088.20/x
  3. Step 3: Cross multiply
    930,841.40x = 1,395,431.04 × 398,088.20
  4. Step 4: Simplify right side
    930,841.40x = 555,504,630,937.73
  5. Step 5: Solve for x
    x = 555,504,630,937.73/930,841.40
  6. Step 6: Final answer
    x = 596,776.88

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Double scale
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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.