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Finding the Fourth Proportional to 573,111.70, 859,667.55 and 307,391.20

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Solution

The fourth proportional to 573,111.70, 859,667.55 and 307,391.20 is: 461,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,111.70 : 859,667.55 = 307,391.20 : x
  2. Step 2: Convert to fraction form
    573,111.70/859,667.55 = 307,391.20/x
  3. Step 3: Cross multiply
    573,111.70x = 859,667.55 × 307,391.20
  4. Step 4: Simplify right side
    573,111.70x = 264,254,239,795.56
  5. Step 5: Solve for x
    x = 264,254,239,795.56/573,111.70
  6. Step 6: Final answer
    x = 461,086.80

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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.