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Finding the Fourth Proportional to 572,373.12, 789,835.38 and 317,704.26

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Solution

The fourth proportional to 572,373.12, 789,835.38 and 317,704.26 is: 438,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,373.12 : 789,835.38 = 317,704.26 : x
  2. Step 2: Convert to fraction form
    572,373.12/789,835.38 = 317,704.26/x
  3. Step 3: Cross multiply
    572,373.12x = 789,835.38 × 317,704.26
  4. Step 4: Simplify right side
    572,373.12x = 250,934,064,924.72
  5. Step 5: Solve for x
    x = 250,934,064,924.72/572,373.12
  6. Step 6: Final answer
    x = 438,409.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.