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Finding the Fourth Proportional to 6,462,146.40, 8,917,398.18 and 3,561,528.36

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Solution

The fourth proportional to 6,462,146.40, 8,917,398.18 and 3,561,528.36 is: 4,914,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,462,146.40 : 8,917,398.18 = 3,561,528.36 : x
  2. Step 2: Convert to fraction form
    6,462,146.40/8,917,398.18 = 3,561,528.36/x
  3. Step 3: Cross multiply
    6,462,146.40x = 8,917,398.18 × 3,561,528.36
  4. Step 4: Simplify right side
    6,462,146.40x = 31,759,566,515,482.38
  5. Step 5: Solve for x
    x = 31,759,566,515,482.38/6,462,146.40
  6. Step 6: Final answer
    x = 4,914,708.60

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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.