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Finding the Fourth Proportional to 1,260,661.64, 1,739,795.27 and 716,848.02

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Solution

The fourth proportional to 1,260,661.64, 1,739,795.27 and 716,848.02 is: 989,297.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,661.64 : 1,739,795.27 = 716,848.02 : x
  2. Step 2: Convert to fraction form
    1,260,661.64/1,739,795.27 = 716,848.02/x
  3. Step 3: Cross multiply
    1,260,661.64x = 1,739,795.27 × 716,848.02
  4. Step 4: Simplify right side
    1,260,661.64x = 1,247,168,790,920.63
  5. Step 5: Solve for x
    x = 1,247,168,790,920.63/1,260,661.64
  6. Step 6: Final answer
    x = 989,297.01

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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.