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Finding the Fourth Proportional to 448,971.60, 673,457.40 and 369,255.45

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Solution

The fourth proportional to 448,971.60, 673,457.40 and 369,255.45 is: 553,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,971.60 : 673,457.40 = 369,255.45 : x
  2. Step 2: Convert to fraction form
    448,971.60/673,457.40 = 369,255.45/x
  3. Step 3: Cross multiply
    448,971.60x = 673,457.40 × 369,255.45
  4. Step 4: Simplify right side
    448,971.60x = 248,677,815,292.83
  5. Step 5: Solve for x
    x = 248,677,815,292.83/448,971.60
  6. Step 6: Final answer
    x = 553,883.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.