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Finding the Fourth Proportional to 683,596.80, 1,025,443.80 and 210,281.40

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Solution

The fourth proportional to 683,596.80, 1,025,443.80 and 210,281.40 is: 315,437.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,596.80 : 1,025,443.80 = 210,281.40 : x
  2. Step 2: Convert to fraction form
    683,596.80/1,025,443.80 = 210,281.40/x
  3. Step 3: Cross multiply
    683,596.80x = 1,025,443.80 × 210,281.40
  4. Step 4: Simplify right side
    683,596.80x = 215,631,757,885.32
  5. Step 5: Solve for x
    x = 215,631,757,885.32/683,596.80
  6. Step 6: Final answer
    x = 315,437.05

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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.