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Finding the Fourth Proportional to 1,265,750.64, 1,746,729.48 and 684,973.32

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Solution

The fourth proportional to 1,265,750.64, 1,746,729.48 and 684,973.32 is: 945,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,750.64 : 1,746,729.48 = 684,973.32 : x
  2. Step 2: Convert to fraction form
    1,265,750.64/1,746,729.48 = 684,973.32/x
  3. Step 3: Cross multiply
    1,265,750.64x = 1,746,729.48 × 684,973.32
  4. Step 4: Simplify right side
    1,265,750.64x = 1,196,463,091,057.47
  5. Step 5: Solve for x
    x = 1,196,463,091,057.47/1,265,750.64
  6. Step 6: Final answer
    x = 945,259.72

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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.