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Finding the Fourth Proportional to 674,500.38, 930,813.00 and 368,576.81

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Solution

The fourth proportional to 674,500.38, 930,813.00 and 368,576.81 is: 508,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,500.38 : 930,813.00 = 368,576.81 : x
  2. Step 2: Convert to fraction form
    674,500.38/930,813.00 = 368,576.81/x
  3. Step 3: Cross multiply
    674,500.38x = 930,813.00 × 368,576.81
  4. Step 4: Simplify right side
    674,500.38x = 343,076,082,983.41
  5. Step 5: Solve for x
    x = 343,076,082,983.41/674,500.38
  6. Step 6: Final answer
    x = 508,637.35

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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.