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Finding the Fourth Proportional to 425,405.34, 587,071.94 and 234,431.10

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Solution

The fourth proportional to 425,405.34, 587,071.94 and 234,431.10 is: 323,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,405.34 : 587,071.94 = 234,431.10 : x
  2. Step 2: Convert to fraction form
    425,405.34/587,071.94 = 234,431.10/x
  3. Step 3: Cross multiply
    425,405.34x = 587,071.94 × 234,431.10
  4. Step 4: Simplify right side
    425,405.34x = 137,627,919,501.18
  5. Step 5: Solve for x
    x = 137,627,919,501.18/425,405.34
  6. Step 6: Final answer
    x = 323,521.84

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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.