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Finding the Fourth Proportional to 2,637,643.04, 3,639,949.44 and 1,430,419.04

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Solution

The fourth proportional to 2,637,643.04, 3,639,949.44 and 1,430,419.04 is: 1,973,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637,643.04 : 3,639,949.44 = 1,430,419.04 : x
  2. Step 2: Convert to fraction form
    2,637,643.04/3,639,949.44 = 1,430,419.04/x
  3. Step 3: Cross multiply
    2,637,643.04x = 3,639,949.44 × 1,430,419.04
  4. Step 4: Simplify right side
    2,637,643.04x = 5,206,652,983,613.34
  5. Step 5: Solve for x
    x = 5,206,652,983,613.34/2,637,643.04
  6. Step 6: Final answer
    x = 1,973,979.38

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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.