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Finding the Fourth Proportional to 637,505.99, 879,777.61 and 351,036.32

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Solution

The fourth proportional to 637,505.99, 879,777.61 and 351,036.32 is: 484,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,505.99 : 879,777.61 = 351,036.32 : x
  2. Step 2: Convert to fraction form
    637,505.99/879,777.61 = 351,036.32/x
  3. Step 3: Cross multiply
    637,505.99x = 879,777.61 × 351,036.32
  4. Step 4: Simplify right side
    637,505.99x = 308,833,894,632.80
  5. Step 5: Solve for x
    x = 308,833,894,632.80/637,505.99
  6. Step 6: Final answer
    x = 484,440.78

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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.