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Finding the Fourth Proportional to 576,525.60, 864,788.40 and 520,538.40

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Solution

The fourth proportional to 576,525.60, 864,788.40 and 520,538.40 is: 780,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,525.60 : 864,788.40 = 520,538.40 : x
  2. Step 2: Convert to fraction form
    576,525.60/864,788.40 = 520,538.40/x
  3. Step 3: Cross multiply
    576,525.60x = 864,788.40 × 520,538.40
  4. Step 4: Simplify right side
    576,525.60x = 450,155,570,074.56
  5. Step 5: Solve for x
    x = 450,155,570,074.56/576,525.60
  6. Step 6: Final answer
    x = 780,807.60

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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.