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Finding the Fourth Proportional to 637,243.86, 879,480.51 and 382,611.45

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Solution

The fourth proportional to 637,243.86, 879,480.51 and 382,611.45 is: 528,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,243.86 : 879,480.51 = 382,611.45 : x
  2. Step 2: Convert to fraction form
    637,243.86/879,480.51 = 382,611.45/x
  3. Step 3: Cross multiply
    637,243.86x = 879,480.51 × 382,611.45
  4. Step 4: Simplify right side
    637,243.86x = 336,499,313,177.84
  5. Step 5: Solve for x
    x = 336,499,313,177.84/637,243.86
  6. Step 6: Final answer
    x = 528,054.23

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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.