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Finding the Fourth Proportional to 346,420.10, 519,630.15 and 228,224.90

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Solution

The fourth proportional to 346,420.10, 519,630.15 and 228,224.90 is: 342,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,420.10 : 519,630.15 = 228,224.90 : x
  2. Step 2: Convert to fraction form
    346,420.10/519,630.15 = 228,224.90/x
  3. Step 3: Cross multiply
    346,420.10x = 519,630.15 × 228,224.90
  4. Step 4: Simplify right side
    346,420.10x = 118,592,539,020.74
  5. Step 5: Solve for x
    x = 118,592,539,020.74/346,420.10
  6. Step 6: Final answer
    x = 342,337.35

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Similar ratio
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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.