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Finding the Fourth Proportional to 573,087.90, 859,631.85 and 152,406.30

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Solution

The fourth proportional to 573,087.90, 859,631.85 and 152,406.30 is: 228,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,087.90 : 859,631.85 = 152,406.30 : x
  2. Step 2: Convert to fraction form
    573,087.90/859,631.85 = 152,406.30/x
  3. Step 3: Cross multiply
    573,087.90x = 859,631.85 × 152,406.30
  4. Step 4: Simplify right side
    573,087.90x = 131,013,309,620.66
  5. Step 5: Solve for x
    x = 131,013,309,620.66/573,087.90
  6. Step 6: Final answer
    x = 228,609.45

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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.