Home / 525,824.40-787,699.80-314,835.60

Finding the Fourth Proportional to 525,824.40, 787,699.80 and 314,835.60

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Solution

The fourth proportional to 525,824.40, 787,699.80 and 314,835.60 is: 471,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,824.40 : 787,699.80 = 314,835.60 : x
  2. Step 2: Convert to fraction form
    525,824.40/787,699.80 = 314,835.60/x
  3. Step 3: Cross multiply
    525,824.40x = 787,699.80 × 314,835.60
  4. Step 4: Simplify right side
    525,824.40x = 247,995,939,152.88
  5. Step 5: Solve for x
    x = 247,995,939,152.88/525,824.40
  6. Step 6: Final answer
    x = 471,632.62

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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.