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Finding the Fourth Proportional to 455,306.01, 628,881.42 and 341,095.61

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Solution

The fourth proportional to 455,306.01, 628,881.42 and 341,095.61 is: 471,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,306.01 : 628,881.42 = 341,095.61 : x
  2. Step 2: Convert to fraction form
    455,306.01/628,881.42 = 341,095.61/x
  3. Step 3: Cross multiply
    455,306.01x = 628,881.42 × 341,095.61
  4. Step 4: Simplify right side
    455,306.01x = 214,508,688,428.16
  5. Step 5: Solve for x
    x = 214,508,688,428.16/455,306.01
  6. Step 6: Final answer
    x = 471,130.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.