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Finding the Fourth Proportional to 585,841.20, 876,688.20 and 399,217.20

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Solution

The fourth proportional to 585,841.20, 876,688.20 and 399,217.20 is: 597,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,841.20 : 876,688.20 = 399,217.20 : x
  2. Step 2: Convert to fraction form
    585,841.20/876,688.20 = 399,217.20/x
  3. Step 3: Cross multiply
    585,841.20x = 876,688.20 × 399,217.20
  4. Step 4: Simplify right side
    585,841.20x = 349,989,008,477.04
  5. Step 5: Solve for x
    x = 349,989,008,477.04/585,841.20
  6. Step 6: Final answer
    x = 597,412.76

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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.