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Finding the Fourth Proportional to 572,538.80, 858,808.20 and 543,670.40

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Solution

The fourth proportional to 572,538.80, 858,808.20 and 543,670.40 is: 815,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,538.80 : 858,808.20 = 543,670.40 : x
  2. Step 2: Convert to fraction form
    572,538.80/858,808.20 = 543,670.40/x
  3. Step 3: Cross multiply
    572,538.80x = 858,808.20 × 543,670.40
  4. Step 4: Simplify right side
    572,538.80x = 466,908,597,617.28
  5. Step 5: Solve for x
    x = 466,908,597,617.28/572,538.80
  6. Step 6: Final answer
    x = 815,505.60

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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.