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Finding the Fourth Proportional to 522,088.40, 783,132.60 and 433,518.80

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Solution

The fourth proportional to 522,088.40, 783,132.60 and 433,518.80 is: 650,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,088.40 : 783,132.60 = 433,518.80 : x
  2. Step 2: Convert to fraction form
    522,088.40/783,132.60 = 433,518.80/x
  3. Step 3: Cross multiply
    522,088.40x = 783,132.60 × 433,518.80
  4. Step 4: Simplify right side
    522,088.40x = 339,502,704,992.88
  5. Step 5: Solve for x
    x = 339,502,704,992.88/522,088.40
  6. Step 6: Final answer
    x = 650,278.20

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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.