Home / 1,173,328-1,619,192.64-636,784

Finding the Fourth Proportional to 1,173,328, 1,619,192.64 and 636,784

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Solution

The fourth proportional to 1,173,328, 1,619,192.64 and 636,784 is: 878,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,328 : 1,619,192.64 = 636,784 : x
  2. Step 2: Convert to fraction form
    1,173,328/1,619,192.64 = 636,784/x
  3. Step 3: Cross multiply
    1,173,328x = 1,619,192.64 × 636,784
  4. Step 4: Simplify right side
    1,173,328x = 1,031,075,966,069.76
  5. Step 5: Solve for x
    x = 1,031,075,966,069.76/1,173,328
  6. Step 6: Final answer
    x = 878,761.92

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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.