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Finding the Fourth Proportional to 343,280.10, 514,920.15 and 329,283.30

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Solution

The fourth proportional to 343,280.10, 514,920.15 and 329,283.30 is: 493,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,280.10 : 514,920.15 = 329,283.30 : x
  2. Step 2: Convert to fraction form
    343,280.10/514,920.15 = 329,283.30/x
  3. Step 3: Cross multiply
    343,280.10x = 514,920.15 × 329,283.30
  4. Step 4: Simplify right side
    343,280.10x = 169,554,606,228.50
  5. Step 5: Solve for x
    x = 169,554,606,228.50/343,280.10
  6. Step 6: Final answer
    x = 493,924.95

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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.