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Finding the Fourth Proportional to 368,561.49, 508,608.90 and 207,416.45

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Solution

The fourth proportional to 368,561.49, 508,608.90 and 207,416.45 is: 286,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,561.49 : 508,608.90 = 207,416.45 : x
  2. Step 2: Convert to fraction form
    368,561.49/508,608.90 = 207,416.45/x
  3. Step 3: Cross multiply
    368,561.49x = 508,608.90 × 207,416.45
  4. Step 4: Simplify right side
    368,561.49x = 105,493,852,476.41
  5. Step 5: Solve for x
    x = 105,493,852,476.41/368,561.49
  6. Step 6: Final answer
    x = 286,231.35

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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.