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Finding the Fourth Proportional to 624,533.76, 861,632.64 and 356,106.24

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Solution

The fourth proportional to 624,533.76, 861,632.64 and 356,106.24 is: 491,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,533.76 : 861,632.64 = 356,106.24 : x
  2. Step 2: Convert to fraction form
    624,533.76/861,632.64 = 356,106.24/x
  3. Step 3: Cross multiply
    624,533.76x = 861,632.64 × 356,106.24
  4. Step 4: Simplify right side
    624,533.76x = 306,832,759,691.67
  5. Step 5: Solve for x
    x = 306,832,759,691.67/624,533.76
  6. Step 6: Final answer
    x = 491,298.92

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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.