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Finding the Fourth Proportional to 447,220.90, 616,957.51 and 265,831.12

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Solution

The fourth proportional to 447,220.90, 616,957.51 and 265,831.12 is: 366,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,220.90 : 616,957.51 = 265,831.12 : x
  2. Step 2: Convert to fraction form
    447,220.90/616,957.51 = 265,831.12/x
  3. Step 3: Cross multiply
    447,220.90x = 616,957.51 × 265,831.12
  4. Step 4: Simplify right side
    447,220.90x = 164,006,501,461.77
  5. Step 5: Solve for x
    x = 164,006,501,461.77/447,220.90
  6. Step 6: Final answer
    x = 366,723.70

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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.