Home / 938,587.84-1,296,320.16-636,256.96

Finding the Fourth Proportional to 938,587.84, 1,296,320.16 and 636,256.96

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Solution

The fourth proportional to 938,587.84, 1,296,320.16 and 636,256.96 is: 878,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,587.84 : 1,296,320.16 = 636,256.96 : x
  2. Step 2: Convert to fraction form
    938,587.84/1,296,320.16 = 636,256.96/x
  3. Step 3: Cross multiply
    938,587.84x = 1,296,320.16 × 636,256.96
  4. Step 4: Simplify right side
    938,587.84x = 824,792,724,188.31
  5. Step 5: Solve for x
    x = 824,792,724,188.31/938,587.84
  6. Step 6: Final answer
    x = 878,759.23

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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.