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Finding the Fourth Proportional to 573,089.90, 859,634.85 and 152,408.30

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Solution

The fourth proportional to 573,089.90, 859,634.85 and 152,408.30 is: 228,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,089.90 : 859,634.85 = 152,408.30 : x
  2. Step 2: Convert to fraction form
    573,089.90/859,634.85 = 152,408.30/x
  3. Step 3: Cross multiply
    573,089.90x = 859,634.85 × 152,408.30
  4. Step 4: Simplify right side
    573,089.90x = 131,015,486,109.26
  5. Step 5: Solve for x
    x = 131,015,486,109.26/573,089.90
  6. Step 6: Final answer
    x = 228,612.45

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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.