Home / 1,038,512.40-1,557,768.60-407,446.80

Finding the Fourth Proportional to 1,038,512.40, 1,557,768.60 and 407,446.80

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Solution

The fourth proportional to 1,038,512.40, 1,557,768.60 and 407,446.80 is: 611,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,512.40 : 1,557,768.60 = 407,446.80 : x
  2. Step 2: Convert to fraction form
    1,038,512.40/1,557,768.60 = 407,446.80/x
  3. Step 3: Cross multiply
    1,038,512.40x = 1,557,768.60 × 407,446.80
  4. Step 4: Simplify right side
    1,038,512.40x = 634,707,831,210.48
  5. Step 5: Solve for x
    x = 634,707,831,210.48/1,038,512.40
  6. Step 6: Final answer
    x = 611,170.20

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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.