Home / 630,141.48-869,560.56-358,171.56

Finding the Fourth Proportional to 630,141.48, 869,560.56 and 358,171.56

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Solution

The fourth proportional to 630,141.48, 869,560.56 and 358,171.56 is: 494,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,141.48 : 869,560.56 = 358,171.56 : x
  2. Step 2: Convert to fraction form
    630,141.48/869,560.56 = 358,171.56/x
  3. Step 3: Cross multiply
    630,141.48x = 869,560.56 × 358,171.56
  4. Step 4: Simplify right side
    630,141.48x = 311,451,862,289.67
  5. Step 5: Solve for x
    x = 311,451,862,289.67/630,141.48
  6. Step 6: Final answer
    x = 494,257.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.