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Finding the Fourth Proportional to 735,900.90, 1,103,887.80 and 381,606.90

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Solution

The fourth proportional to 735,900.90, 1,103,887.80 and 381,606.90 is: 572,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,900.90 : 1,103,887.80 = 381,606.90 : x
  2. Step 2: Convert to fraction form
    735,900.90/1,103,887.80 = 381,606.90/x
  3. Step 3: Cross multiply
    735,900.90x = 1,103,887.80 × 381,606.90
  4. Step 4: Simplify right side
    735,900.90x = 421,251,201,305.82
  5. Step 5: Solve for x
    x = 421,251,201,305.82/735,900.90
  6. Step 6: Final answer
    x = 572,429.25

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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.