Home / 630,136.48-869,553.66-358,166.56

Finding the Fourth Proportional to 630,136.48, 869,553.66 and 358,166.56

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Solution

The fourth proportional to 630,136.48, 869,553.66 and 358,166.56 is: 494,250.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,136.48 : 869,553.66 = 358,166.56 : x
  2. Step 2: Convert to fraction form
    630,136.48/869,553.66 = 358,166.56/x
  3. Step 3: Cross multiply
    630,136.48x = 869,553.66 × 358,166.56
  4. Step 4: Simplify right side
    630,136.48x = 311,445,043,137.61
  5. Step 5: Solve for x
    x = 311,445,043,137.61/630,136.48
  6. Step 6: Final answer
    x = 494,250.14

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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.