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Finding the Fourth Proportional to 338,386.70, 466,848.16 and 217,594.60

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Solution

The fourth proportional to 338,386.70, 466,848.16 and 217,594.60 is: 300,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,386.70 : 466,848.16 = 217,594.60 : x
  2. Step 2: Convert to fraction form
    338,386.70/466,848.16 = 217,594.60/x
  3. Step 3: Cross multiply
    338,386.70x = 466,848.16 × 217,594.60
  4. Step 4: Simplify right side
    338,386.70x = 101,583,638,635.94
  5. Step 5: Solve for x
    x = 101,583,638,635.94/338,386.70
  6. Step 6: Final answer
    x = 300,199.86

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1.5x scale

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.