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Finding the Fourth Proportional to 694,853.58, 957,587.46 and 556,875.78

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Solution

The fourth proportional to 694,853.58, 957,587.46 and 556,875.78 is: 767,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,853.58 : 957,587.46 = 556,875.78 : x
  2. Step 2: Convert to fraction form
    694,853.58/957,587.46 = 556,875.78/x
  3. Step 3: Cross multiply
    694,853.58x = 957,587.46 × 556,875.78
  4. Step 4: Simplify right side
    694,853.58x = 533,257,263,705.72
  5. Step 5: Solve for x
    x = 533,257,263,705.72/694,853.58
  6. Step 6: Final answer
    x = 767,438.32

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Double scale
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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.