Home / 926,655.84-1,278,531.90-636,354.72

Finding the Fourth Proportional to 926,655.84, 1,278,531.90 and 636,354.72

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Solution

The fourth proportional to 926,655.84, 1,278,531.90 and 636,354.72 is: 877,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,655.84 : 1,278,531.90 = 636,354.72 : x
  2. Step 2: Convert to fraction form
    926,655.84/1,278,531.90 = 636,354.72/x
  3. Step 3: Cross multiply
    926,655.84x = 1,278,531.90 × 636,354.72
  4. Step 4: Simplify right side
    926,655.84x = 813,599,809,235.57
  5. Step 5: Solve for x
    x = 813,599,809,235.57/926,655.84
  6. Step 6: Final answer
    x = 877,995.66

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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.