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Finding the Fourth Proportional to 346,076.10, 519,114.15 and 257,502.60

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Solution

The fourth proportional to 346,076.10, 519,114.15 and 257,502.60 is: 386,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,076.10 : 519,114.15 = 257,502.60 : x
  2. Step 2: Convert to fraction form
    346,076.10/519,114.15 = 257,502.60/x
  3. Step 3: Cross multiply
    346,076.10x = 519,114.15 × 257,502.60
  4. Step 4: Simplify right side
    346,076.10x = 133,673,243,321.79
  5. Step 5: Solve for x
    x = 133,673,243,321.79/346,076.10
  6. Step 6: Final answer
    x = 386,253.90

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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.