Home / 1,640,161.32-2,263,423.64-915,009.08

Finding the Fourth Proportional to 1,640,161.32, 2,263,423.64 and 915,009.08

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Solution

The fourth proportional to 1,640,161.32, 2,263,423.64 and 915,009.08 is: 1,262,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,161.32 : 2,263,423.64 = 915,009.08 : x
  2. Step 2: Convert to fraction form
    1,640,161.32/2,263,423.64 = 915,009.08/x
  3. Step 3: Cross multiply
    1,640,161.32x = 2,263,423.64 × 915,009.08
  4. Step 4: Simplify right side
    1,640,161.32x = 2,071,053,182,486.65
  5. Step 5: Solve for x
    x = 2,071,053,182,486.65/1,640,161.32
  6. Step 6: Final answer
    x = 1,262,713.10

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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.