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Finding the Fourth Proportional to 537,282.40, 805,923.60 and 397,314.40

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Solution

The fourth proportional to 537,282.40, 805,923.60 and 397,314.40 is: 595,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,282.40 : 805,923.60 = 397,314.40 : x
  2. Step 2: Convert to fraction form
    537,282.40/805,923.60 = 397,314.40/x
  3. Step 3: Cross multiply
    537,282.40x = 805,923.60 × 397,314.40
  4. Step 4: Simplify right side
    537,282.40x = 320,205,051,579.84
  5. Step 5: Solve for x
    x = 320,205,051,579.84/537,282.40
  6. Step 6: Final answer
    x = 595,971.60

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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.