Home / 913,220.58-1,369,816.50-314,186.94

Finding the Fourth Proportional to 913,220.58, 1,369,816.50 and 314,186.94

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Solution

The fourth proportional to 913,220.58, 1,369,816.50 and 314,186.94 is: 471,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,220.58 : 1,369,816.50 = 314,186.94 : x
  2. Step 2: Convert to fraction form
    913,220.58/1,369,816.50 = 314,186.94/x
  3. Step 3: Cross multiply
    913,220.58x = 1,369,816.50 × 314,186.94
  4. Step 4: Simplify right side
    913,220.58x = 430,378,454,496.51
  5. Step 5: Solve for x
    x = 430,378,454,496.51/913,220.58
  6. Step 6: Final answer
    x = 471,275.47

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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.