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Finding the Fourth Proportional to 522,040.40, 783,060.60 and 353,641.40

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Solution

The fourth proportional to 522,040.40, 783,060.60 and 353,641.40 is: 530,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,040.40 : 783,060.60 = 353,641.40 : x
  2. Step 2: Convert to fraction form
    522,040.40/783,060.60 = 353,641.40/x
  3. Step 3: Cross multiply
    522,040.40x = 783,060.60 × 353,641.40
  4. Step 4: Simplify right side
    522,040.40x = 276,922,646,868.84
  5. Step 5: Solve for x
    x = 276,922,646,868.84/522,040.40
  6. Step 6: Final answer
    x = 530,462.10

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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.