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Finding the Fourth Proportional to 1,249,935.32, 1,874,342.46 and 744,734.18

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Solution

The fourth proportional to 1,249,935.32, 1,874,342.46 and 744,734.18 is: 1,116,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,935.32 : 1,874,342.46 = 744,734.18 : x
  2. Step 2: Convert to fraction form
    1,249,935.32/1,874,342.46 = 744,734.18/x
  3. Step 3: Cross multiply
    1,249,935.32x = 1,874,342.46 × 744,734.18
  4. Step 4: Simplify right side
    1,249,935.32x = 1,395,886,894,987.28
  5. Step 5: Solve for x
    x = 1,395,886,894,987.28/1,249,935.32
  6. Step 6: Final answer
    x = 1,116,767.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.