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Finding the Fourth Proportional to 492,322.08, 739,868.16 and 292,678.32

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Solution

The fourth proportional to 492,322.08, 739,868.16 and 292,678.32 is: 439,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,322.08 : 739,868.16 = 292,678.32 : x
  2. Step 2: Convert to fraction form
    492,322.08/739,868.16 = 292,678.32/x
  3. Step 3: Cross multiply
    492,322.08x = 739,868.16 × 292,678.32
  4. Step 4: Simplify right side
    492,322.08x = 216,543,370,090.29
  5. Step 5: Solve for x
    x = 216,543,370,090.29/492,322.08
  6. Step 6: Final answer
    x = 439,840.87

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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.