Home / 645,895.20-968,842.80-616,864.80

Finding the Fourth Proportional to 645,895.20, 968,842.80 and 616,864.80

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Solution

The fourth proportional to 645,895.20, 968,842.80 and 616,864.80 is: 925,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,895.20 : 968,842.80 = 616,864.80 : x
  2. Step 2: Convert to fraction form
    645,895.20/968,842.80 = 616,864.80/x
  3. Step 3: Cross multiply
    645,895.20x = 968,842.80 × 616,864.80
  4. Step 4: Simplify right side
    645,895.20x = 597,645,020,053.44
  5. Step 5: Solve for x
    x = 597,645,020,053.44/645,895.20
  6. Step 6: Final answer
    x = 925,297.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.