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Finding the Fourth Proportional to 346,609.32, 478,312.05 and 193,648.66

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Solution

The fourth proportional to 346,609.32, 478,312.05 and 193,648.66 is: 267,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,609.32 : 478,312.05 = 193,648.66 : x
  2. Step 2: Convert to fraction form
    346,609.32/478,312.05 = 193,648.66/x
  3. Step 3: Cross multiply
    346,609.32x = 478,312.05 × 193,648.66
  4. Step 4: Simplify right side
    346,609.32x = 92,624,487,544.35
  5. Step 5: Solve for x
    x = 92,624,487,544.35/346,609.32
  6. Step 6: Final answer
    x = 267,230.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.