Home / 913,995.68-1,371,273.78-408,981.80

Finding the Fourth Proportional to 913,995.68, 1,371,273.78 and 408,981.80

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Solution

The fourth proportional to 913,995.68, 1,371,273.78 and 408,981.80 is: 613,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,995.68 : 1,371,273.78 = 408,981.80 : x
  2. Step 2: Convert to fraction form
    913,995.68/1,371,273.78 = 408,981.80/x
  3. Step 3: Cross multiply
    913,995.68x = 1,371,273.78 × 408,981.80
  4. Step 4: Simplify right side
    913,995.68x = 560,826,018,837.20
  5. Step 5: Solve for x
    x = 560,826,018,837.20/913,995.68
  6. Step 6: Final answer
    x = 613,598.11

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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.