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Finding the Fourth Proportional to 366,903.40, 512,615 and 366,903.40

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Solution

The fourth proportional to 366,903.40, 512,615 and 366,903.40 is: 512,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,903.40 : 512,615 = 366,903.40 : x
  2. Step 2: Convert to fraction form
    366,903.40/512,615 = 366,903.40/x
  3. Step 3: Cross multiply
    366,903.40x = 512,615 × 366,903.40
  4. Step 4: Simplify right side
    366,903.40x = 188,080,186,391
  5. Step 5: Solve for x
    x = 188,080,186,391/366,903.40
  6. Step 6: Final answer
    x = 512,615.00

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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.