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Finding the Fourth Proportional to 484,815.34, 669,038.84 and 267,019.87

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Solution

The fourth proportional to 484,815.34, 669,038.84 and 267,019.87 is: 368,483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,815.34 : 669,038.84 = 267,019.87 : x
  2. Step 2: Convert to fraction form
    484,815.34/669,038.84 = 267,019.87/x
  3. Step 3: Cross multiply
    484,815.34x = 669,038.84 × 267,019.87
  4. Step 4: Simplify right side
    484,815.34x = 178,646,661,448.16
  5. Step 5: Solve for x
    x = 178,646,661,448.16/484,815.34
  6. Step 6: Final answer
    x = 368,483.93

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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.