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Finding the Fourth Proportional to 735,781.60, 1,103,413.20 and 262,482.40

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Solution

The fourth proportional to 735,781.60, 1,103,413.20 and 262,482.40 is: 393,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,781.60 : 1,103,413.20 = 262,482.40 : x
  2. Step 2: Convert to fraction form
    735,781.60/1,103,413.20 = 262,482.40/x
  3. Step 3: Cross multiply
    735,781.60x = 1,103,413.20 × 262,482.40
  4. Step 4: Simplify right side
    735,781.60x = 289,626,544,927.68
  5. Step 5: Solve for x
    x = 289,626,544,927.68/735,781.60
  6. Step 6: Final answer
    x = 393,631.13

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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.