Home / 919,805.80-1,269,483.78-537,759.40

Finding the Fourth Proportional to 919,805.80, 1,269,483.78 and 537,759.40

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Solution

The fourth proportional to 919,805.80, 1,269,483.78 and 537,759.40 is: 742,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,805.80 : 1,269,483.78 = 537,759.40 : x
  2. Step 2: Convert to fraction form
    919,805.80/1,269,483.78 = 537,759.40/x
  3. Step 3: Cross multiply
    919,805.80x = 1,269,483.78 × 537,759.40
  4. Step 4: Simplify right side
    919,805.80x = 682,676,835,842.53
  5. Step 5: Solve for x
    x = 682,676,835,842.53/919,805.80
  6. Step 6: Final answer
    x = 742,196.71

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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.