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Finding the Fourth Proportional to 291,703.90, 437,555.85 and 165,732.70

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Solution

The fourth proportional to 291,703.90, 437,555.85 and 165,732.70 is: 248,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,703.90 : 437,555.85 = 165,732.70 : x
  2. Step 2: Convert to fraction form
    291,703.90/437,555.85 = 165,732.70/x
  3. Step 3: Cross multiply
    291,703.90x = 437,555.85 × 165,732.70
  4. Step 4: Simplify right side
    291,703.90x = 72,517,312,421.30
  5. Step 5: Solve for x
    x = 72,517,312,421.30/291,703.90
  6. Step 6: Final answer
    x = 248,599.05

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1.5x scale

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.