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Finding the Fourth Proportional to 469,888.08, 705,128.40 and 245,652.72

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Solution

The fourth proportional to 469,888.08, 705,128.40 and 245,652.72 is: 368,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,888.08 : 705,128.40 = 245,652.72 : x
  2. Step 2: Convert to fraction form
    469,888.08/705,128.40 = 245,652.72/x
  3. Step 3: Cross multiply
    469,888.08x = 705,128.40 × 245,652.72
  4. Step 4: Simplify right side
    469,888.08x = 173,216,709,409.25
  5. Step 5: Solve for x
    x = 173,216,709,409.25/469,888.08
  6. Step 6: Final answer
    x = 368,633.97

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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.