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Finding the Fourth Proportional to 526.96, 790.16 and 202

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Solution

The fourth proportional to 526.96, 790.16 and 202 is: 302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.96 : 790.16 = 202 : x
  2. Step 2: Convert to fraction form
    526.96/790.16 = 202/x
  3. Step 3: Cross multiply
    526.96x = 790.16 × 202
  4. Step 4: Simplify right side
    526.96x = 159,612.32
  5. Step 5: Solve for x
    x = 159,612.32/526.96
  6. Step 6: Final answer
    x = 302.89

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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.