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Finding the Fourth Proportional to 523,890.80, 785,951.40 and 168,844.40

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Solution

The fourth proportional to 523,890.80, 785,951.40 and 168,844.40 is: 253,303.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,890.80 : 785,951.40 = 168,844.40 : x
  2. Step 2: Convert to fraction form
    523,890.80/785,951.40 = 168,844.40/x
  3. Step 3: Cross multiply
    523,890.80x = 785,951.40 × 168,844.40
  4. Step 4: Simplify right side
    523,890.80x = 132,703,492,562.16
  5. Step 5: Solve for x
    x = 132,703,492,562.16/523,890.80
  6. Step 6: Final answer
    x = 253,303.73

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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.