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Finding the Fourth Proportional to 692,865.92, 957,072.98 and 557,410.03

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Solution

The fourth proportional to 692,865.92, 957,072.98 and 557,410.03 is: 769,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,865.92 : 957,072.98 = 557,410.03 : x
  2. Step 2: Convert to fraction form
    692,865.92/957,072.98 = 557,410.03/x
  3. Step 3: Cross multiply
    692,865.92x = 957,072.98 × 557,410.03
  4. Step 4: Simplify right side
    692,865.92x = 533,482,077,494.83
  5. Step 5: Solve for x
    x = 533,482,077,494.83/692,865.92
  6. Step 6: Final answer
    x = 769,964.38

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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.