Home / 525,134.40-786,664.80-314,145.60

Finding the Fourth Proportional to 525,134.40, 786,664.80 and 314,145.60

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Solution

The fourth proportional to 525,134.40, 786,664.80 and 314,145.60 is: 470,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,134.40 : 786,664.80 = 314,145.60 : x
  2. Step 2: Convert to fraction form
    525,134.40/786,664.80 = 314,145.60/x
  3. Step 3: Cross multiply
    525,134.40x = 786,664.80 × 314,145.60
  4. Step 4: Simplify right side
    525,134.40x = 247,127,285,594.88
  5. Step 5: Solve for x
    x = 247,127,285,594.88/525,134.40
  6. Step 6: Final answer
    x = 470,598.17

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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.