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Finding the Fourth Proportional to 539,490.40, 808,587.60 and 223,784.80

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Solution

The fourth proportional to 539,490.40, 808,587.60 and 223,784.80 is: 335,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,490.40 : 808,587.60 = 223,784.80 : x
  2. Step 2: Convert to fraction form
    539,490.40/808,587.60 = 223,784.80/x
  3. Step 3: Cross multiply
    539,490.40x = 808,587.60 × 223,784.80
  4. Step 4: Simplify right side
    539,490.40x = 180,949,614,348.48
  5. Step 5: Solve for x
    x = 180,949,614,348.48/539,490.40
  6. Step 6: Final answer
    x = 335,408.40

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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.