Home / 1,081,597.15-1,621,251.64-407,386.74

Finding the Fourth Proportional to 1,081,597.15, 1,621,251.64 and 407,386.74

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Solution

The fourth proportional to 1,081,597.15, 1,621,251.64 and 407,386.74 is: 610,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,597.15 : 1,621,251.64 = 407,386.74 : x
  2. Step 2: Convert to fraction form
    1,081,597.15/1,621,251.64 = 407,386.74/x
  3. Step 3: Cross multiply
    1,081,597.15x = 1,621,251.64 × 407,386.74
  4. Step 4: Simplify right side
    1,081,597.15x = 660,476,420,339.25
  5. Step 5: Solve for x
    x = 660,476,420,339.25/1,081,597.15
  6. Step 6: Final answer
    x = 610,649.19

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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.