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Finding the Fourth Proportional to 550,389.52, 759,753.84 and 369,035.38

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Solution

The fourth proportional to 550,389.52, 759,753.84 and 369,035.38 is: 509,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,389.52 : 759,753.84 = 369,035.38 : x
  2. Step 2: Convert to fraction form
    550,389.52/759,753.84 = 369,035.38/x
  3. Step 3: Cross multiply
    550,389.52x = 759,753.84 × 369,035.38
  4. Step 4: Simplify right side
    550,389.52x = 280,376,047,050.86
  5. Step 5: Solve for x
    x = 280,376,047,050.86/550,389.52
  6. Step 6: Final answer
    x = 509,413.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.