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Finding the Fourth Proportional to 369,628.30, 518,879.30 and 369,628.30

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Solution

The fourth proportional to 369,628.30, 518,879.30 and 369,628.30 is: 518,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,628.30 : 518,879.30 = 369,628.30 : x
  2. Step 2: Convert to fraction form
    369,628.30/518,879.30 = 369,628.30/x
  3. Step 3: Cross multiply
    369,628.30x = 518,879.30 × 369,628.30
  4. Step 4: Simplify right side
    369,628.30x = 191,792,473,564.19
  5. Step 5: Solve for x
    x = 191,792,473,564.19/369,628.30
  6. Step 6: Final answer
    x = 518,879.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.