Home / 989,905.30-1,366,069.31-537,196.30

Finding the Fourth Proportional to 989,905.30, 1,366,069.31 and 537,196.30

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Solution

The fourth proportional to 989,905.30, 1,366,069.31 and 537,196.30 is: 741,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,905.30 : 1,366,069.31 = 537,196.30 : x
  2. Step 2: Convert to fraction form
    989,905.30/1,366,069.31 = 537,196.30/x
  3. Step 3: Cross multiply
    989,905.30x = 1,366,069.31 × 537,196.30
  4. Step 4: Simplify right side
    989,905.30x = 733,847,378,875.55
  5. Step 5: Solve for x
    x = 733,847,378,875.55/989,905.30
  6. Step 6: Final answer
    x = 741,330.89

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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.