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Finding the Fourth Proportional to 449,133.68, 619,803 and 247,928.24

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Solution

The fourth proportional to 449,133.68, 619,803 and 247,928.24 is: 342,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,133.68 : 619,803 = 247,928.24 : x
  2. Step 2: Convert to fraction form
    449,133.68/619,803 = 247,928.24/x
  3. Step 3: Cross multiply
    449,133.68x = 619,803 × 247,928.24
  4. Step 4: Simplify right side
    449,133.68x = 153,666,666,936.72
  5. Step 5: Solve for x
    x = 153,666,666,936.72/449,133.68
  6. Step 6: Final answer
    x = 342,140.16

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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.