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Finding the Fourth Proportional to 911,279.78, 1,257,513.99 and 544,171.16

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Solution

The fourth proportional to 911,279.78, 1,257,513.99 and 544,171.16 is: 750,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,279.78 : 1,257,513.99 = 544,171.16 : x
  2. Step 2: Convert to fraction form
    911,279.78/1,257,513.99 = 544,171.16/x
  3. Step 3: Cross multiply
    911,279.78x = 1,257,513.99 × 544,171.16
  4. Step 4: Simplify right side
    911,279.78x = 684,302,847,757.67
  5. Step 5: Solve for x
    x = 684,302,847,757.67/911,279.78
  6. Step 6: Final answer
    x = 750,925.09

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1.5x scale

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.