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Finding the Fourth Proportional to 648,501.99, 888,443.58 and 624,251.43

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Solution

The fourth proportional to 648,501.99, 888,443.58 and 624,251.43 is: 855,220.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,501.99 : 888,443.58 = 624,251.43 : x
  2. Step 2: Convert to fraction form
    648,501.99/888,443.58 = 624,251.43/x
  3. Step 3: Cross multiply
    648,501.99x = 888,443.58 × 624,251.43
  4. Step 4: Simplify right side
    648,501.99x = 554,612,175,289.32
  5. Step 5: Solve for x
    x = 554,612,175,289.32/648,501.99
  6. Step 6: Final answer
    x = 855,220.47

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Half scale
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Double scale
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Similar ratio
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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.