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Finding the Fourth Proportional to 555,643.89, 833,459.76 and 134,920.17

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Solution

The fourth proportional to 555,643.89, 833,459.76 and 134,920.17 is: 202,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,643.89 : 833,459.76 = 134,920.17 : x
  2. Step 2: Convert to fraction form
    555,643.89/833,459.76 = 134,920.17/x
  3. Step 3: Cross multiply
    555,643.89x = 833,459.76 × 134,920.17
  4. Step 4: Simplify right side
    555,643.89x = 112,450,532,507.36
  5. Step 5: Solve for x
    x = 112,450,532,507.36/555,643.89
  6. Step 6: Final answer
    x = 202,378.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.