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Finding the Fourth Proportional to 572,009.60, 858,014.40 and 547,740.80

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Solution

The fourth proportional to 572,009.60, 858,014.40 and 547,740.80 is: 821,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,009.60 : 858,014.40 = 547,740.80 : x
  2. Step 2: Convert to fraction form
    572,009.60/858,014.40 = 547,740.80/x
  3. Step 3: Cross multiply
    572,009.60x = 858,014.40 × 547,740.80
  4. Step 4: Simplify right side
    572,009.60x = 469,969,493,867.52
  5. Step 5: Solve for x
    x = 469,969,493,867.52/572,009.60
  6. Step 6: Final answer
    x = 821,611.20

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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.