Home / 878,145.25-1,211,841.66-475,737.25

Finding the Fourth Proportional to 878,145.25, 1,211,841.66 and 475,737.25

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Solution

The fourth proportional to 878,145.25, 1,211,841.66 and 475,737.25 is: 656,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,145.25 : 1,211,841.66 = 475,737.25 : x
  2. Step 2: Convert to fraction form
    878,145.25/1,211,841.66 = 475,737.25/x
  3. Step 3: Cross multiply
    878,145.25x = 1,211,841.66 × 475,737.25
  4. Step 4: Simplify right side
    878,145.25x = 576,518,218,763.84
  5. Step 5: Solve for x
    x = 576,518,218,763.84/878,145.25
  6. Step 6: Final answer
    x = 656,518.06

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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.