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Finding the Fourth Proportional to 584,413.20, 876,619.80 and 374,461.20

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Solution

The fourth proportional to 584,413.20, 876,619.80 and 374,461.20 is: 561,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,413.20 : 876,619.80 = 374,461.20 : x
  2. Step 2: Convert to fraction form
    584,413.20/876,619.80 = 374,461.20/x
  3. Step 3: Cross multiply
    584,413.20x = 876,619.80 × 374,461.20
  4. Step 4: Simplify right side
    584,413.20x = 328,260,102,251.76
  5. Step 5: Solve for x
    x = 328,260,102,251.76/584,413.20
  6. Step 6: Final answer
    x = 561,691.80

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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.