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Finding the Fourth Proportional to 469,817.01, 648,347.45 and 254,957.08

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Solution

The fourth proportional to 469,817.01, 648,347.45 and 254,957.08 is: 351,840.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,817.01 : 648,347.45 = 254,957.08 : x
  2. Step 2: Convert to fraction form
    469,817.01/648,347.45 = 254,957.08/x
  3. Step 3: Cross multiply
    469,817.01x = 648,347.45 × 254,957.08
  4. Step 4: Simplify right side
    469,817.01x = 165,300,771,325.17
  5. Step 5: Solve for x
    x = 165,300,771,325.17/469,817.01
  6. Step 6: Final answer
    x = 351,840.75

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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.