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Finding the Fourth Proportional to 576,439.54, 865,186.65 and 292,326.19

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Solution

The fourth proportional to 576,439.54, 865,186.65 and 292,326.19 is: 438,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,439.54 : 865,186.65 = 292,326.19 : x
  2. Step 2: Convert to fraction form
    576,439.54/865,186.65 = 292,326.19/x
  3. Step 3: Cross multiply
    576,439.54x = 865,186.65 × 292,326.19
  4. Step 4: Simplify right side
    576,439.54x = 252,916,714,870.40
  5. Step 5: Solve for x
    x = 252,916,714,870.40/576,439.54
  6. Step 6: Final answer
    x = 438,756.71

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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.