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Finding the Fourth Proportional to 626,550.11, 864,640.14 and 340,070.32

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Solution

The fourth proportional to 626,550.11, 864,640.14 and 340,070.32 is: 469,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,550.11 : 864,640.14 = 340,070.32 : x
  2. Step 2: Convert to fraction form
    626,550.11/864,640.14 = 340,070.32/x
  3. Step 3: Cross multiply
    626,550.11x = 864,640.14 × 340,070.32
  4. Step 4: Simplify right side
    626,550.11x = 294,038,448,900.18
  5. Step 5: Solve for x
    x = 294,038,448,900.18/626,550.11
  6. Step 6: Final answer
    x = 469,297.58

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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.