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Finding the Fourth Proportional to 614,670.20, 922,005.30 and 447,364.70

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Solution

The fourth proportional to 614,670.20, 922,005.30 and 447,364.70 is: 671,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,670.20 : 922,005.30 = 447,364.70 : x
  2. Step 2: Convert to fraction form
    614,670.20/922,005.30 = 447,364.70/x
  3. Step 3: Cross multiply
    614,670.20x = 922,005.30 × 447,364.70
  4. Step 4: Simplify right side
    614,670.20x = 412,472,624,432.91
  5. Step 5: Solve for x
    x = 412,472,624,432.91/614,670.20
  6. Step 6: Final answer
    x = 671,047.05

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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.