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Finding the Fourth Proportional to 535,485.15, 802,801.49 and 265,423.23

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Solution

The fourth proportional to 535,485.15, 802,801.49 and 265,423.23 is: 397,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,485.15 : 802,801.49 = 265,423.23 : x
  2. Step 2: Convert to fraction form
    535,485.15/802,801.49 = 265,423.23/x
  3. Step 3: Cross multiply
    535,485.15x = 802,801.49 × 265,423.23
  4. Step 4: Simplify right side
    535,485.15x = 213,082,163,197.50
  5. Step 5: Solve for x
    x = 213,082,163,197.50/535,485.15
  6. Step 6: Final answer
    x = 397,923.57

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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.