Home / 786,101.02-1,179,036.51-386,634.40

Finding the Fourth Proportional to 786,101.02, 1,179,036.51 and 386,634.40

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Solution

The fourth proportional to 786,101.02, 1,179,036.51 and 386,634.40 is: 579,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,101.02 : 1,179,036.51 = 386,634.40 : x
  2. Step 2: Convert to fraction form
    786,101.02/1,179,036.51 = 386,634.40/x
  3. Step 3: Cross multiply
    786,101.02x = 1,179,036.51 × 386,634.40
  4. Step 4: Simplify right side
    786,101.02x = 455,856,073,621.94
  5. Step 5: Solve for x
    x = 455,856,073,621.94/786,101.02
  6. Step 6: Final answer
    x = 579,895.03

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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.