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Finding the Fourth Proportional to 886,886.54, 1,223,903.50 and 484,478.54

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Solution

The fourth proportional to 886,886.54, 1,223,903.50 and 484,478.54 is: 668,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,886.54 : 1,223,903.50 = 484,478.54 : x
  2. Step 2: Convert to fraction form
    886,886.54/1,223,903.50 = 484,478.54/x
  3. Step 3: Cross multiply
    886,886.54x = 1,223,903.50 × 484,478.54
  4. Step 4: Simplify right side
    886,886.54x = 592,954,980,780.89
  5. Step 5: Solve for x
    x = 592,954,980,780.89/886,886.54
  6. Step 6: Final answer
    x = 668,580.43

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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.