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Finding the Fourth Proportional to 452,867.72, 624,641.06 and 384,412.58

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Solution

The fourth proportional to 452,867.72, 624,641.06 and 384,412.58 is: 530,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,867.72 : 624,641.06 = 384,412.58 : x
  2. Step 2: Convert to fraction form
    452,867.72/624,641.06 = 384,412.58/x
  3. Step 3: Cross multiply
    452,867.72x = 624,641.06 × 384,412.58
  4. Step 4: Simplify right side
    452,867.72x = 240,119,881,448.54
  5. Step 5: Solve for x
    x = 240,119,881,448.54/452,867.72
  6. Step 6: Final answer
    x = 530,220.79

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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.