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Finding the Fourth Proportional to 373,692.38, 515,429.80 and 249,450.80

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Solution

The fourth proportional to 373,692.38, 515,429.80 and 249,450.80 is: 344,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,692.38 : 515,429.80 = 249,450.80 : x
  2. Step 2: Convert to fraction form
    373,692.38/515,429.80 = 249,450.80/x
  3. Step 3: Cross multiply
    373,692.38x = 515,429.80 × 249,450.80
  4. Step 4: Simplify right side
    373,692.38x = 128,574,372,753.06
  5. Step 5: Solve for x
    x = 128,574,372,753.06/373,692.38
  6. Step 6: Final answer
    x = 344,064.75

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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.