Home / 913,908.02-1,261,209.81-511,499.06

Finding the Fourth Proportional to 913,908.02, 1,261,209.81 and 511,499.06

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Solution

The fourth proportional to 913,908.02, 1,261,209.81 and 511,499.06 is: 705,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,908.02 : 1,261,209.81 = 511,499.06 : x
  2. Step 2: Convert to fraction form
    913,908.02/1,261,209.81 = 511,499.06/x
  3. Step 3: Cross multiply
    913,908.02x = 1,261,209.81 × 511,499.06
  4. Step 4: Simplify right side
    913,908.02x = 645,107,632,277.78
  5. Step 5: Solve for x
    x = 645,107,632,277.78/913,908.02
  6. Step 6: Final answer
    x = 705,878.07

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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.