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Finding the Fourth Proportional to 688,873.92, 950,612.16 and 382,970.88

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Solution

The fourth proportional to 688,873.92, 950,612.16 and 382,970.88 is: 528,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,873.92 : 950,612.16 = 382,970.88 : x
  2. Step 2: Convert to fraction form
    688,873.92/950,612.16 = 382,970.88/x
  3. Step 3: Cross multiply
    688,873.92x = 950,612.16 × 382,970.88
  4. Step 4: Simplify right side
    688,873.92x = 364,056,775,453.90
  5. Step 5: Solve for x
    x = 364,056,775,453.90/688,873.92
  6. Step 6: Final answer
    x = 528,481.00

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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.