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Finding the Fourth Proportional to 535,480.40, 803,220.60 and 255,544.40

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Solution

The fourth proportional to 535,480.40, 803,220.60 and 255,544.40 is: 383,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,480.40 : 803,220.60 = 255,544.40 : x
  2. Step 2: Convert to fraction form
    535,480.40/803,220.60 = 255,544.40/x
  3. Step 3: Cross multiply
    535,480.40x = 803,220.60 × 255,544.40
  4. Step 4: Simplify right side
    535,480.40x = 205,258,526,294.64
  5. Step 5: Solve for x
    x = 205,258,526,294.64/535,480.40
  6. Step 6: Final answer
    x = 383,316.60

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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.