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Finding the Fourth Proportional to 579,178.88, 798,792.95 and 407,664.62

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Solution

The fourth proportional to 579,178.88, 798,792.95 and 407,664.62 is: 562,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,178.88 : 798,792.95 = 407,664.62 : x
  2. Step 2: Convert to fraction form
    579,178.88/798,792.95 = 407,664.62/x
  3. Step 3: Cross multiply
    579,178.88x = 798,792.95 × 407,664.62
  4. Step 4: Simplify right side
    579,178.88x = 325,639,618,388.14
  5. Step 5: Solve for x
    x = 325,639,618,388.14/579,178.88
  6. Step 6: Final answer
    x = 562,243.60

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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.