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Finding the Fourth Proportional to 619,820.10, 930,276.90 and 366,784.20

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Solution

The fourth proportional to 619,820.10, 930,276.90 and 366,784.20 is: 550,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,820.10 : 930,276.90 = 366,784.20 : x
  2. Step 2: Convert to fraction form
    619,820.10/930,276.90 = 366,784.20/x
  3. Step 3: Cross multiply
    619,820.10x = 930,276.90 × 366,784.20
  4. Step 4: Simplify right side
    619,820.10x = 341,210,868,544.98
  5. Step 5: Solve for x
    x = 341,210,868,544.98/619,820.10
  6. Step 6: Final answer
    x = 550,499.84

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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.