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Finding the Fourth Proportional to 576,059.60, 864,089.40 and 543,400.40

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Solution

The fourth proportional to 576,059.60, 864,089.40 and 543,400.40 is: 815,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,059.60 : 864,089.40 = 543,400.40 : x
  2. Step 2: Convert to fraction form
    576,059.60/864,089.40 = 543,400.40/x
  3. Step 3: Cross multiply
    576,059.60x = 864,089.40 × 543,400.40
  4. Step 4: Simplify right side
    576,059.60x = 469,546,525,595.76
  5. Step 5: Solve for x
    x = 469,546,525,595.76/576,059.60
  6. Step 6: Final answer
    x = 815,100.60

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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.