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Finding the Fourth Proportional to 637,510.23, 879,783.47 and 351,040.57

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Solution

The fourth proportional to 637,510.23, 879,783.47 and 351,040.57 is: 484,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,510.23 : 879,783.47 = 351,040.57 : x
  2. Step 2: Convert to fraction form
    637,510.23/879,783.47 = 351,040.57/x
  3. Step 3: Cross multiply
    637,510.23x = 879,783.47 × 351,040.57
  4. Step 4: Simplify right side
    637,510.23x = 308,839,690,785.38
  5. Step 5: Solve for x
    x = 308,839,690,785.38/637,510.23
  6. Step 6: Final answer
    x = 484,446.64

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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.