Home / 739,994.94-1,021,119.21-417,642.78

Finding the Fourth Proportional to 739,994.94, 1,021,119.21 and 417,642.78

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Solution

The fourth proportional to 739,994.94, 1,021,119.21 and 417,642.78 is: 576,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,994.94 : 1,021,119.21 = 417,642.78 : x
  2. Step 2: Convert to fraction form
    739,994.94/1,021,119.21 = 417,642.78/x
  3. Step 3: Cross multiply
    739,994.94x = 1,021,119.21 × 417,642.78
  4. Step 4: Simplify right side
    739,994.94x = 426,463,069,405.00
  5. Step 5: Solve for x
    x = 426,463,069,405.00/739,994.94
  6. Step 6: Final answer
    x = 576,305.39

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Half scale
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Double scale
Find fourth proportional to 739,995.94, 1,021,120.59 and 417,643.78
Similar ratio
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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.