Home / 874,838.16-1,312,257.26-209,990.16

Finding the Fourth Proportional to 874,838.16, 1,312,257.26 and 209,990.16

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Solution

The fourth proportional to 874,838.16, 1,312,257.26 and 209,990.16 is: 314,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,838.16 : 1,312,257.26 = 209,990.16 : x
  2. Step 2: Convert to fraction form
    874,838.16/1,312,257.26 = 209,990.16/x
  3. Step 3: Cross multiply
    874,838.16x = 1,312,257.26 × 209,990.16
  4. Step 4: Simplify right side
    874,838.16x = 275,561,111,988.56
  5. Step 5: Solve for x
    x = 275,561,111,988.56/874,838.16
  6. Step 6: Final answer
    x = 314,985.24

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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.