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Finding the Fourth Proportional to 419,725.98, 579,156.12 and 235,928.16

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Solution

The fourth proportional to 419,725.98, 579,156.12 and 235,928.16 is: 325,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,725.98 : 579,156.12 = 235,928.16 : x
  2. Step 2: Convert to fraction form
    419,725.98/579,156.12 = 235,928.16/x
  3. Step 3: Cross multiply
    419,725.98x = 579,156.12 × 235,928.16
  4. Step 4: Simplify right side
    419,725.98x = 136,639,237,744.34
  5. Step 5: Solve for x
    x = 136,639,237,744.34/419,725.98
  6. Step 6: Final answer
    x = 325,543.91

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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.