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Finding the Fourth Proportional to 525,220.80, 787,928.40 and 170,246.40

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Solution

The fourth proportional to 525,220.80, 787,928.40 and 170,246.40 is: 255,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,220.80 : 787,928.40 = 170,246.40 : x
  2. Step 2: Convert to fraction form
    525,220.80/787,928.40 = 170,246.40/x
  3. Step 3: Cross multiply
    525,220.80x = 787,928.40 × 170,246.40
  4. Step 4: Simplify right side
    525,220.80x = 134,141,973,557.76
  5. Step 5: Solve for x
    x = 134,141,973,557.76/525,220.80
  6. Step 6: Final answer
    x = 255,401.11

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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.