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Finding the Fourth Proportional to 488,717.31, 732,624.93 and 339,028.23

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Solution

The fourth proportional to 488,717.31, 732,624.93 and 339,028.23 is: 508,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,717.31 : 732,624.93 = 339,028.23 : x
  2. Step 2: Convert to fraction form
    488,717.31/732,624.93 = 339,028.23/x
  3. Step 3: Cross multiply
    488,717.31x = 732,624.93 × 339,028.23
  4. Step 4: Simplify right side
    488,717.31x = 248,380,533,271.77
  5. Step 5: Solve for x
    x = 248,380,533,271.77/488,717.31
  6. Step 6: Final answer
    x = 508,229.46

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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.