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Finding the Fourth Proportional to 573,009.12, 859,513.68 and 217,941.12

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Solution

The fourth proportional to 573,009.12, 859,513.68 and 217,941.12 is: 326,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,009.12 : 859,513.68 = 217,941.12 : x
  2. Step 2: Convert to fraction form
    573,009.12/859,513.68 = 217,941.12/x
  3. Step 3: Cross multiply
    573,009.12x = 859,513.68 × 217,941.12
  4. Step 4: Simplify right side
    573,009.12x = 187,323,374,074.52
  5. Step 5: Solve for x
    x = 187,323,374,074.52/573,009.12
  6. Step 6: Final answer
    x = 326,911.68

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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.