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Finding the Fourth Proportional to 688,525.94, 950,146.76 and 382,594.40

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Solution

The fourth proportional to 688,525.94, 950,146.76 and 382,594.40 is: 527,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,525.94 : 950,146.76 = 382,594.40 : x
  2. Step 2: Convert to fraction form
    688,525.94/950,146.76 = 382,594.40/x
  3. Step 3: Cross multiply
    688,525.94x = 950,146.76 × 382,594.40
  4. Step 4: Simplify right side
    688,525.94x = 363,520,822,890.44
  5. Step 5: Solve for x
    x = 363,520,822,890.44/688,525.94
  6. Step 6: Final answer
    x = 527,969.69

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Double scale
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Similar ratio
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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.