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Finding the Fourth Proportional to 1,249,907.70, 1,724,864.04 and 676,934.76

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Solution

The fourth proportional to 1,249,907.70, 1,724,864.04 and 676,934.76 is: 934,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,907.70 : 1,724,864.04 = 676,934.76 : x
  2. Step 2: Convert to fraction form
    1,249,907.70/1,724,864.04 = 676,934.76/x
  3. Step 3: Cross multiply
    1,249,907.70x = 1,724,864.04 × 676,934.76
  4. Step 4: Simplify right side
    1,249,907.70x = 1,167,620,424,950.03
  5. Step 5: Solve for x
    x = 1,167,620,424,950.03/1,249,907.70
  6. Step 6: Final answer
    x = 934,165.32

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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.