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Finding the Fourth Proportional to 576,095.40, 864,143.10 and 455,826.60

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Solution

The fourth proportional to 576,095.40, 864,143.10 and 455,826.60 is: 683,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,095.40 : 864,143.10 = 455,826.60 : x
  2. Step 2: Convert to fraction form
    576,095.40/864,143.10 = 455,826.60/x
  3. Step 3: Cross multiply
    576,095.40x = 864,143.10 × 455,826.60
  4. Step 4: Simplify right side
    576,095.40x = 393,899,411,186.46
  5. Step 5: Solve for x
    x = 393,899,411,186.46/576,095.40
  6. Step 6: Final answer
    x = 683,739.90

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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.