Home / 989,895.79-1,366,057.07-537,186.79

Finding the Fourth Proportional to 989,895.79, 1,366,057.07 and 537,186.79

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Solution

The fourth proportional to 989,895.79, 1,366,057.07 and 537,186.79 is: 741,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,895.79 : 1,366,057.07 = 537,186.79 : x
  2. Step 2: Convert to fraction form
    989,895.79/1,366,057.07 = 537,186.79/x
  3. Step 3: Cross multiply
    989,895.79x = 1,366,057.07 × 537,186.79
  4. Step 4: Simplify right side
    989,895.79x = 733,827,812,390.11
  5. Step 5: Solve for x
    x = 733,827,812,390.11/989,895.79
  6. Step 6: Final answer
    x = 741,318.25

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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.