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Finding the Fourth Proportional to 424,933.70, 637,400.55 and 292,223.30

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Solution

The fourth proportional to 424,933.70, 637,400.55 and 292,223.30 is: 438,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,933.70 : 637,400.55 = 292,223.30 : x
  2. Step 2: Convert to fraction form
    424,933.70/637,400.55 = 292,223.30/x
  3. Step 3: Cross multiply
    424,933.70x = 637,400.55 × 292,223.30
  4. Step 4: Simplify right side
    424,933.70x = 186,263,292,142.82
  5. Step 5: Solve for x
    x = 186,263,292,142.82/424,933.70
  6. Step 6: Final answer
    x = 438,334.95

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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.