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Finding the Fourth Proportional to 614,638.10, 921,358.44 and 277,763.54

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Solution

The fourth proportional to 614,638.10, 921,358.44 and 277,763.54 is: 416,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,638.10 : 921,358.44 = 277,763.54 : x
  2. Step 2: Convert to fraction form
    614,638.10/921,358.44 = 277,763.54/x
  3. Step 3: Cross multiply
    614,638.10x = 921,358.44 × 277,763.54
  4. Step 4: Simplify right side
    614,638.10x = 255,919,781,903.28
  5. Step 5: Solve for x
    x = 255,919,781,903.28/614,638.10
  6. Step 6: Final answer
    x = 416,374.74

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1.5x scale

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.