Home / 912,320.56-1,258,725.85-636,671.08

Finding the Fourth Proportional to 912,320.56, 1,258,725.85 and 636,671.08

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Solution

The fourth proportional to 912,320.56, 1,258,725.85 and 636,671.08 is: 878,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,320.56 : 1,258,725.85 = 636,671.08 : x
  2. Step 2: Convert to fraction form
    912,320.56/1,258,725.85 = 636,671.08/x
  3. Step 3: Cross multiply
    912,320.56x = 1,258,725.85 × 636,671.08
  4. Step 4: Simplify right side
    912,320.56x = 801,394,343,160.06
  5. Step 5: Solve for x
    x = 801,394,343,160.06/912,320.56
  6. Step 6: Final answer
    x = 878,413.11

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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.