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Finding the Fourth Proportional to 407,827.80, 611,741.70 and 400,829.40

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Solution

The fourth proportional to 407,827.80, 611,741.70 and 400,829.40 is: 601,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,827.80 : 611,741.70 = 400,829.40 : x
  2. Step 2: Convert to fraction form
    407,827.80/611,741.70 = 400,829.40/x
  3. Step 3: Cross multiply
    407,827.80x = 611,741.70 × 400,829.40
  4. Step 4: Simplify right side
    407,827.80x = 245,204,058,565.98
  5. Step 5: Solve for x
    x = 245,204,058,565.98/407,827.80
  6. Step 6: Final answer
    x = 601,244.10

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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.