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Finding the Fourth Proportional to 576,718.08, 864,532.80 and 277,368

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Solution

The fourth proportional to 576,718.08, 864,532.80 and 277,368 is: 415,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,718.08 : 864,532.80 = 277,368 : x
  2. Step 2: Convert to fraction form
    576,718.08/864,532.80 = 277,368/x
  3. Step 3: Cross multiply
    576,718.08x = 864,532.80 × 277,368
  4. Step 4: Simplify right side
    576,718.08x = 239,793,733,670.40
  5. Step 5: Solve for x
    x = 239,793,733,670.40/576,718.08
  6. Step 6: Final answer
    x = 415,790.21

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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.