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Finding the Fourth Proportional to 470,957.16, 649,901.08 and 267,021.80

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Solution

The fourth proportional to 470,957.16, 649,901.08 and 267,021.80 is: 368,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,957.16 : 649,901.08 = 267,021.80 : x
  2. Step 2: Convert to fraction form
    470,957.16/649,901.08 = 267,021.80/x
  3. Step 3: Cross multiply
    470,957.16x = 649,901.08 × 267,021.80
  4. Step 4: Simplify right side
    470,957.16x = 173,537,756,203.54
  5. Step 5: Solve for x
    x = 173,537,756,203.54/470,957.16
  6. Step 6: Final answer
    x = 368,478.86

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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.