Home / 619,256.10-930,983.85-494,490.18

Finding the Fourth Proportional to 619,256.10, 930,983.85 and 494,490.18

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Solution

The fourth proportional to 619,256.10, 930,983.85 and 494,490.18 is: 743,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,256.10 : 930,983.85 = 494,490.18 : x
  2. Step 2: Convert to fraction form
    619,256.10/930,983.85 = 494,490.18/x
  3. Step 3: Cross multiply
    619,256.10x = 930,983.85 × 494,490.18
  4. Step 4: Simplify right side
    619,256.10x = 460,362,371,563.59
  5. Step 5: Solve for x
    x = 460,362,371,563.59/619,256.10
  6. Step 6: Final answer
    x = 743,411.93

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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.