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Finding the Fourth Proportional to 527,604.59, 728,051.19 and 298,181.54

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Solution

The fourth proportional to 527,604.59, 728,051.19 and 298,181.54 is: 411,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,604.59 : 728,051.19 = 298,181.54 : x
  2. Step 2: Convert to fraction form
    527,604.59/728,051.19 = 298,181.54/x
  3. Step 3: Cross multiply
    527,604.59x = 728,051.19 × 298,181.54
  4. Step 4: Simplify right side
    527,604.59x = 217,091,421,392.78
  5. Step 5: Solve for x
    x = 217,091,421,392.78/527,604.59
  6. Step 6: Final answer
    x = 411,466.14

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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.