Home / 989,862.56-1,366,036.80-537,153.92

Finding the Fourth Proportional to 989,862.56, 1,366,036.80 and 537,153.92

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Solution

The fourth proportional to 989,862.56, 1,366,036.80 and 537,153.92 is: 741,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,862.56 : 1,366,036.80 = 537,153.92 : x
  2. Step 2: Convert to fraction form
    989,862.56/1,366,036.80 = 537,153.92/x
  3. Step 3: Cross multiply
    989,862.56x = 1,366,036.80 × 537,153.92
  4. Step 4: Simplify right side
    989,862.56x = 733,772,021,984.26
  5. Step 5: Solve for x
    x = 733,772,021,984.26/989,862.56
  6. Step 6: Final answer
    x = 741,286.77

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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.