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Finding the Fourth Proportional to 462,685.37, 638,500.57 and 258,733.49

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Solution

The fourth proportional to 462,685.37, 638,500.57 and 258,733.49 is: 357,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,685.37 : 638,500.57 = 258,733.49 : x
  2. Step 2: Convert to fraction form
    462,685.37/638,500.57 = 258,733.49/x
  3. Step 3: Cross multiply
    462,685.37x = 638,500.57 × 258,733.49
  4. Step 4: Simplify right side
    462,685.37x = 165,201,482,050.69
  5. Step 5: Solve for x
    x = 165,201,482,050.69/462,685.37
  6. Step 6: Final answer
    x = 357,049.29

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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.