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Finding the Fourth Proportional to 386,315.80, 579,473.70 and 244,598.20

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Solution

The fourth proportional to 386,315.80, 579,473.70 and 244,598.20 is: 366,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,315.80 : 579,473.70 = 244,598.20 : x
  2. Step 2: Convert to fraction form
    386,315.80/579,473.70 = 244,598.20/x
  3. Step 3: Cross multiply
    386,315.80x = 579,473.70 × 244,598.20
  4. Step 4: Simplify right side
    386,315.80x = 141,738,223,967.34
  5. Step 5: Solve for x
    x = 141,738,223,967.34/386,315.80
  6. Step 6: Final answer
    x = 366,897.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.