Home / 714,156.55-985,598.38-391,928.83

Finding the Fourth Proportional to 714,156.55, 985,598.38 and 391,928.83

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Solution

The fourth proportional to 714,156.55, 985,598.38 and 391,928.83 is: 540,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,156.55 : 985,598.38 = 391,928.83 : x
  2. Step 2: Convert to fraction form
    714,156.55/985,598.38 = 391,928.83/x
  3. Step 3: Cross multiply
    714,156.55x = 985,598.38 × 391,928.83
  4. Step 4: Simplify right side
    714,156.55x = 386,284,417,949.21
  5. Step 5: Solve for x
    x = 386,284,417,949.21/714,156.55
  6. Step 6: Final answer
    x = 540,896.00

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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.