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Finding the Fourth Proportional to 1,973,312.63, 2,959,968.72 and 742,551.96

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Solution

The fourth proportional to 1,973,312.63, 2,959,968.72 and 742,551.96 is: 1,113,827.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,312.63 : 2,959,968.72 = 742,551.96 : x
  2. Step 2: Convert to fraction form
    1,973,312.63/2,959,968.72 = 742,551.96/x
  3. Step 3: Cross multiply
    1,973,312.63x = 2,959,968.72 × 742,551.96
  4. Step 4: Simplify right side
    1,973,312.63x = 2,197,930,571,809.32
  5. Step 5: Solve for x
    x = 2,197,930,571,809.32/1,973,312.63
  6. Step 6: Final answer
    x = 1,113,827.85

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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.