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Finding the Fourth Proportional to 648,843.91, 888,901.23 and 624,585.22

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Solution

The fourth proportional to 648,843.91, 888,901.23 and 624,585.22 is: 855,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,843.91 : 888,901.23 = 624,585.22 : x
  2. Step 2: Convert to fraction form
    648,843.91/888,901.23 = 624,585.22/x
  3. Step 3: Cross multiply
    648,843.91x = 888,901.23 × 624,585.22
  4. Step 4: Simplify right side
    648,843.91x = 555,194,570,417.76
  5. Step 5: Solve for x
    x = 555,194,570,417.76/648,843.91
  6. Step 6: Final answer
    x = 855,667.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.