Home / 1,382,914.17-1,908,282.11-771,009.39

Finding the Fourth Proportional to 1,382,914.17, 1,908,282.11 and 771,009.39

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Solution

The fourth proportional to 1,382,914.17, 1,908,282.11 and 771,009.39 is: 1,063,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,914.17 : 1,908,282.11 = 771,009.39 : x
  2. Step 2: Convert to fraction form
    1,382,914.17/1,908,282.11 = 771,009.39/x
  3. Step 3: Cross multiply
    1,382,914.17x = 1,908,282.11 × 771,009.39
  4. Step 4: Simplify right side
    1,382,914.17x = 1,471,303,421,723.97
  5. Step 5: Solve for x
    x = 1,471,303,421,723.97/1,382,914.17
  6. Step 6: Final answer
    x = 1,063,915.21

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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.