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Finding the Fourth Proportional to 425,643.66, 587,409.98 and 234,656.60

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Solution

The fourth proportional to 425,643.66, 587,409.98 and 234,656.60 is: 323,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,643.66 : 587,409.98 = 234,656.60 : x
  2. Step 2: Convert to fraction form
    425,643.66/587,409.98 = 234,656.60/x
  3. Step 3: Cross multiply
    425,643.66x = 587,409.98 × 234,656.60
  4. Step 4: Simplify right side
    425,643.66x = 137,839,624,602.54
  5. Step 5: Solve for x
    x = 137,839,624,602.54/425,643.66
  6. Step 6: Final answer
    x = 323,838.08

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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.