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Finding the Fourth Proportional to 963,413.10, 1,329,238.62 and 555,482.88

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Solution

The fourth proportional to 963,413.10, 1,329,238.62 and 555,482.88 is: 766,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,413.10 : 1,329,238.62 = 555,482.88 : x
  2. Step 2: Convert to fraction form
    963,413.10/1,329,238.62 = 555,482.88/x
  3. Step 3: Cross multiply
    963,413.10x = 1,329,238.62 × 555,482.88
  4. Step 4: Simplify right side
    963,413.10x = 738,369,296,844.83
  5. Step 5: Solve for x
    x = 738,369,296,844.83/963,413.10
  6. Step 6: Final answer
    x = 766,409.86

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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.