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Finding the Fourth Proportional to 405,064.60, 607,611.48 and 152,321.92

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Solution

The fourth proportional to 405,064.60, 607,611.48 and 152,321.92 is: 228,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,064.60 : 607,611.48 = 152,321.92 : x
  2. Step 2: Convert to fraction form
    405,064.60/607,611.48 = 152,321.92/x
  3. Step 3: Cross multiply
    405,064.60x = 607,611.48 × 152,321.92
  4. Step 4: Simplify right side
    405,064.60x = 92,552,547,247.64
  5. Step 5: Solve for x
    x = 92,552,547,247.64/405,064.60
  6. Step 6: Final answer
    x = 228,488.36

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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.