Home / 1,294,123.40-1,941,185.10-347,640.20

Finding the Fourth Proportional to 1,294,123.40, 1,941,185.10 and 347,640.20

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Solution

The fourth proportional to 1,294,123.40, 1,941,185.10 and 347,640.20 is: 521,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,123.40 : 1,941,185.10 = 347,640.20 : x
  2. Step 2: Convert to fraction form
    1,294,123.40/1,941,185.10 = 347,640.20/x
  3. Step 3: Cross multiply
    1,294,123.40x = 1,941,185.10 × 347,640.20
  4. Step 4: Simplify right side
    1,294,123.40x = 674,833,976,401.02
  5. Step 5: Solve for x
    x = 674,833,976,401.02/1,294,123.40
  6. Step 6: Final answer
    x = 521,460.30

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Half scale
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Double scale
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Similar ratio
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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.