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Finding the Fourth Proportional to 458,411.62, 688,069.98 and 344,162.06

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Solution

The fourth proportional to 458,411.62, 688,069.98 and 344,162.06 is: 516,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,411.62 : 688,069.98 = 344,162.06 : x
  2. Step 2: Convert to fraction form
    458,411.62/688,069.98 = 344,162.06/x
  3. Step 3: Cross multiply
    458,411.62x = 688,069.98 × 344,162.06
  4. Step 4: Simplify right side
    458,411.62x = 236,807,582,090.99
  5. Step 5: Solve for x
    x = 236,807,582,090.99/458,411.62
  6. Step 6: Final answer
    x = 516,582.85

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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.