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Finding the Fourth Proportional to 405,323.04, 559,423.08 and 267,259.20

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Solution

The fourth proportional to 405,323.04, 559,423.08 and 267,259.20 is: 368,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,323.04 : 559,423.08 = 267,259.20 : x
  2. Step 2: Convert to fraction form
    405,323.04/559,423.08 = 267,259.20/x
  3. Step 3: Cross multiply
    405,323.04x = 559,423.08 × 267,259.20
  4. Step 4: Simplify right side
    405,323.04x = 149,510,964,822.34
  5. Step 5: Solve for x
    x = 149,510,964,822.34/405,323.04
  6. Step 6: Final answer
    x = 368,868.66

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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.