Home / 945,536.40-1,418,304.60-280,688.40

Finding the Fourth Proportional to 945,536.40, 1,418,304.60 and 280,688.40

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Solution

The fourth proportional to 945,536.40, 1,418,304.60 and 280,688.40 is: 421,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,536.40 : 1,418,304.60 = 280,688.40 : x
  2. Step 2: Convert to fraction form
    945,536.40/1,418,304.60 = 280,688.40/x
  3. Step 3: Cross multiply
    945,536.40x = 1,418,304.60 × 280,688.40
  4. Step 4: Simplify right side
    945,536.40x = 398,101,648,886.64
  5. Step 5: Solve for x
    x = 398,101,648,886.64/945,536.40
  6. Step 6: Final answer
    x = 421,032.60

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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.