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Finding the Fourth Proportional to 1,249,747.22, 1,724,647.68 and 676,787.24

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Solution

The fourth proportional to 1,249,747.22, 1,724,647.68 and 676,787.24 is: 933,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,747.22 : 1,724,647.68 = 676,787.24 : x
  2. Step 2: Convert to fraction form
    1,249,747.22/1,724,647.68 = 676,787.24/x
  3. Step 3: Cross multiply
    1,249,747.22x = 1,724,647.68 × 676,787.24
  4. Step 4: Simplify right side
    1,249,747.22x = 1,167,219,547,631.22
  5. Step 5: Solve for x
    x = 1,167,219,547,631.22/1,249,747.22
  6. Step 6: Final answer
    x = 933,964.51

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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.