Home / 877,185.70-1,210,519.92-474,777.70

Finding the Fourth Proportional to 877,185.70, 1,210,519.92 and 474,777.70

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Solution

The fourth proportional to 877,185.70, 1,210,519.92 and 474,777.70 is: 655,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,185.70 : 1,210,519.92 = 474,777.70 : x
  2. Step 2: Convert to fraction form
    877,185.70/1,210,519.92 = 474,777.70/x
  3. Step 3: Cross multiply
    877,185.70x = 1,210,519.92 × 474,777.70
  4. Step 4: Simplify right side
    877,185.70x = 574,727,864,979.14
  5. Step 5: Solve for x
    x = 574,727,864,979.14/877,185.70
  6. Step 6: Final answer
    x = 655,195.20

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Double scale
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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.