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Finding the Fourth Proportional to 338,439.40, 507,464.70 and 101,746.60

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Solution

The fourth proportional to 338,439.40, 507,464.70 and 101,746.60 is: 152,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,439.40 : 507,464.70 = 101,746.60 : x
  2. Step 2: Convert to fraction form
    338,439.40/507,464.70 = 101,746.60/x
  3. Step 3: Cross multiply
    338,439.40x = 507,464.70 × 101,746.60
  4. Step 4: Simplify right side
    338,439.40x = 51,632,807,845.02
  5. Step 5: Solve for x
    x = 51,632,807,845.02/338,439.40
  6. Step 6: Final answer
    x = 152,561.46

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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.