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Finding the Fourth Proportional to 6,409,770.48, 8,845,485.30 and 3,509,345.52

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Solution

The fourth proportional to 6,409,770.48, 8,845,485.30 and 3,509,345.52 is: 4,842,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,770.48 : 8,845,485.30 = 3,509,345.52 : x
  2. Step 2: Convert to fraction form
    6,409,770.48/8,845,485.30 = 3,509,345.52/x
  3. Step 3: Cross multiply
    6,409,770.48x = 8,845,485.30 × 3,509,345.52
  4. Step 4: Simplify right side
    6,409,770.48x = 31,041,864,209,780.86
  5. Step 5: Solve for x
    x = 31,041,864,209,780.86/6,409,770.48
  6. Step 6: Final answer
    x = 4,842,897.93

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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.