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Finding the Fourth Proportional to 368,000.30, 516,381.40 and 368,000.30

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Solution

The fourth proportional to 368,000.30, 516,381.40 and 368,000.30 is: 516,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,000.30 : 516,381.40 = 368,000.30 : x
  2. Step 2: Convert to fraction form
    368,000.30/516,381.40 = 368,000.30/x
  3. Step 3: Cross multiply
    368,000.30x = 516,381.40 × 368,000.30
  4. Step 4: Simplify right side
    368,000.30x = 190,028,510,114.42
  5. Step 5: Solve for x
    x = 190,028,510,114.42/368,000.30
  6. Step 6: Final answer
    x = 516,381.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.