Home / 631,810.20-947,715.30-252,912.45

Finding the Fourth Proportional to 631,810.20, 947,715.30 and 252,912.45

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Solution

The fourth proportional to 631,810.20, 947,715.30 and 252,912.45 is: 379,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,810.20 : 947,715.30 = 252,912.45 : x
  2. Step 2: Convert to fraction form
    631,810.20/947,715.30 = 252,912.45/x
  3. Step 3: Cross multiply
    631,810.20x = 947,715.30 × 252,912.45
  4. Step 4: Simplify right side
    631,810.20x = 239,688,998,425.49
  5. Step 5: Solve for x
    x = 239,688,998,425.49/631,810.20
  6. Step 6: Final answer
    x = 379,368.68

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Double scale
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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.