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Finding the Fourth Proportional to 346,416.60, 519,624.90 and 228,221.40

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Solution

The fourth proportional to 346,416.60, 519,624.90 and 228,221.40 is: 342,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,416.60 : 519,624.90 = 228,221.40 : x
  2. Step 2: Convert to fraction form
    346,416.60/519,624.90 = 228,221.40/x
  3. Step 3: Cross multiply
    346,416.60x = 519,624.90 × 228,221.40
  4. Step 4: Simplify right side
    346,416.60x = 118,589,522,152.86
  5. Step 5: Solve for x
    x = 118,589,522,152.86/346,416.60
  6. Step 6: Final answer
    x = 342,332.10

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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.