Home / 525,111.40-786,630.30-314,122.60

Finding the Fourth Proportional to 525,111.40, 786,630.30 and 314,122.60

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Solution

The fourth proportional to 525,111.40, 786,630.30 and 314,122.60 is: 470,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,111.40 : 786,630.30 = 314,122.60 : x
  2. Step 2: Convert to fraction form
    525,111.40/786,630.30 = 314,122.60/x
  3. Step 3: Cross multiply
    525,111.40x = 786,630.30 × 314,122.60
  4. Step 4: Simplify right side
    525,111.40x = 247,098,355,074.78
  5. Step 5: Solve for x
    x = 247,098,355,074.78/525,111.40
  6. Step 6: Final answer
    x = 470,563.68

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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.