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Finding the Fourth Proportional to 437,070.80, 655,606.20 and 304,360.40

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Solution

The fourth proportional to 437,070.80, 655,606.20 and 304,360.40 is: 456,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,070.80 : 655,606.20 = 304,360.40 : x
  2. Step 2: Convert to fraction form
    437,070.80/655,606.20 = 304,360.40/x
  3. Step 3: Cross multiply
    437,070.80x = 655,606.20 × 304,360.40
  4. Step 4: Simplify right side
    437,070.80x = 199,540,565,274.48
  5. Step 5: Solve for x
    x = 199,540,565,274.48/437,070.80
  6. Step 6: Final answer
    x = 456,540.60

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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.