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Finding the Fourth Proportional to 338,587.34, 507,901.69 and 113,928.91

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Solution

The fourth proportional to 338,587.34, 507,901.69 and 113,928.91 is: 170,900.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,587.34 : 507,901.69 = 113,928.91 : x
  2. Step 2: Convert to fraction form
    338,587.34/507,901.69 = 113,928.91/x
  3. Step 3: Cross multiply
    338,587.34x = 507,901.69 × 113,928.91
  4. Step 4: Simplify right side
    338,587.34x = 57,864,684,374.28
  5. Step 5: Solve for x
    x = 57,864,684,374.28/338,587.34
  6. Step 6: Final answer
    x = 170,900.32

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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.