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Finding the Fourth Proportional to 405,063.60, 607,609.98 and 152,320.92

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Solution

The fourth proportional to 405,063.60, 607,609.98 and 152,320.92 is: 228,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,063.60 : 607,609.98 = 152,320.92 : x
  2. Step 2: Convert to fraction form
    405,063.60/607,609.98 = 152,320.92/x
  3. Step 3: Cross multiply
    405,063.60x = 607,609.98 × 152,320.92
  4. Step 4: Simplify right side
    405,063.60x = 92,551,711,154.78
  5. Step 5: Solve for x
    x = 92,551,711,154.78/405,063.60
  6. Step 6: Final answer
    x = 228,486.86

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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.