Home / 525,210.75-787,816.13-131,226.75

Finding the Fourth Proportional to 525,210.75, 787,816.13 and 131,226.75

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Solution

The fourth proportional to 525,210.75, 787,816.13 and 131,226.75 is: 196,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,210.75 : 787,816.13 = 131,226.75 : x
  2. Step 2: Convert to fraction form
    525,210.75/787,816.13 = 131,226.75/x
  3. Step 3: Cross multiply
    525,210.75x = 787,816.13 × 131,226.75
  4. Step 4: Simplify right side
    525,210.75x = 103,382,549,681.34
  5. Step 5: Solve for x
    x = 103,382,549,681.34/525,210.75
  6. Step 6: Final answer
    x = 196,840.13

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Double scale
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Similar ratio
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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.