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Finding the Fourth Proportional to 448,369.48, 618,793.38 and 334,995.40

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Solution

The fourth proportional to 448,369.48, 618,793.38 and 334,995.40 is: 462,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,369.48 : 618,793.38 = 334,995.40 : x
  2. Step 2: Convert to fraction form
    448,369.48/618,793.38 = 334,995.40/x
  3. Step 3: Cross multiply
    448,369.48x = 618,793.38 × 334,995.40
  4. Step 4: Simplify right side
    448,369.48x = 207,292,935,850.45
  5. Step 5: Solve for x
    x = 207,292,935,850.45/448,369.48
  6. Step 6: Final answer
    x = 462,326.15

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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.