Home / 713,972.93-985,344.89-391,746.02

Finding the Fourth Proportional to 713,972.93, 985,344.89 and 391,746.02

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Solution

The fourth proportional to 713,972.93, 985,344.89 and 391,746.02 is: 540,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,972.93 : 985,344.89 = 391,746.02 : x
  2. Step 2: Convert to fraction form
    713,972.93/985,344.89 = 391,746.02/x
  3. Step 3: Cross multiply
    713,972.93x = 985,344.89 × 391,746.02
  4. Step 4: Simplify right side
    713,972.93x = 386,004,932,099.38
  5. Step 5: Solve for x
    x = 386,004,932,099.38/713,972.93
  6. Step 6: Final answer
    x = 540,643.66

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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.