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Finding the Fourth Proportional to 6,409,459.50, 8,845,054.11 and 3,547,891.50

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Solution

The fourth proportional to 6,409,459.50, 8,845,054.11 and 3,547,891.50 is: 4,896,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,459.50 : 8,845,054.11 = 3,547,891.50 : x
  2. Step 2: Convert to fraction form
    6,409,459.50/8,845,054.11 = 3,547,891.50/x
  3. Step 3: Cross multiply
    6,409,459.50x = 8,845,054.11 × 3,547,891.50
  4. Step 4: Simplify right side
    6,409,459.50x = 31,381,292,293,909.06
  5. Step 5: Solve for x
    x = 31,381,292,293,909.06/6,409,459.50
  6. Step 6: Final answer
    x = 4,896,090.27

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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.