Home / 889,773.17-1,227,909.50-545,798.78

Finding the Fourth Proportional to 889,773.17, 1,227,909.50 and 545,798.78

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Solution

The fourth proportional to 889,773.17, 1,227,909.50 and 545,798.78 is: 753,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,773.17 : 1,227,909.50 = 545,798.78 : x
  2. Step 2: Convert to fraction form
    889,773.17/1,227,909.50 = 545,798.78/x
  3. Step 3: Cross multiply
    889,773.17x = 1,227,909.50 × 545,798.78
  4. Step 4: Simplify right side
    889,773.17x = 670,191,498,181.87
  5. Step 5: Solve for x
    x = 670,191,498,181.87/889,773.17
  6. Step 6: Final answer
    x = 753,216.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.