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Finding the Fourth Proportional to 577,612.60, 866,476.80 and 198,483.40

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Solution

The fourth proportional to 577,612.60, 866,476.80 and 198,483.40 is: 297,745.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,612.60 : 866,476.80 = 198,483.40 : x
  2. Step 2: Convert to fraction form
    577,612.60/866,476.80 = 198,483.40/x
  3. Step 3: Cross multiply
    577,612.60x = 866,476.80 × 198,483.40
  4. Step 4: Simplify right side
    577,612.60x = 171,981,261,285.12
  5. Step 5: Solve for x
    x = 171,981,261,285.12/577,612.60
  6. Step 6: Final answer
    x = 297,745.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.