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Finding the Fourth Proportional to 522,050.40, 783,075.60 and 397,634.40

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Solution

The fourth proportional to 522,050.40, 783,075.60 and 397,634.40 is: 596,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,050.40 : 783,075.60 = 397,634.40 : x
  2. Step 2: Convert to fraction form
    522,050.40/783,075.60 = 397,634.40/x
  3. Step 3: Cross multiply
    522,050.40x = 783,075.60 × 397,634.40
  4. Step 4: Simplify right side
    522,050.40x = 311,377,796,360.64
  5. Step 5: Solve for x
    x = 311,377,796,360.64/522,050.40
  6. Step 6: Final answer
    x = 596,451.60

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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.