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Finding the Fourth Proportional to 557,953.32, 770,116.81 and 343,285.60

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Solution

The fourth proportional to 557,953.32, 770,116.81 and 343,285.60 is: 473,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,953.32 : 770,116.81 = 343,285.60 : x
  2. Step 2: Convert to fraction form
    557,953.32/770,116.81 = 343,285.60/x
  3. Step 3: Cross multiply
    557,953.32x = 770,116.81 × 343,285.60
  4. Step 4: Simplify right side
    557,953.32x = 264,370,011,190.94
  5. Step 5: Solve for x
    x = 264,370,011,190.94/557,953.32
  6. Step 6: Final answer
    x = 473,821.02

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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.