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Finding the Fourth Proportional to 1,249,777.82, 1,724,690.76 and 676,816.22

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Solution

The fourth proportional to 1,249,777.82, 1,724,690.76 and 676,816.22 is: 934,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,777.82 : 1,724,690.76 = 676,816.22 : x
  2. Step 2: Convert to fraction form
    1,249,777.82/1,724,690.76 = 676,816.22/x
  3. Step 3: Cross multiply
    1,249,777.82x = 1,724,690.76 × 676,816.22
  4. Step 4: Simplify right side
    1,249,777.82x = 1,167,298,680,852.13
  5. Step 5: Solve for x
    x = 1,167,298,680,852.13/1,249,777.82
  6. Step 6: Final answer
    x = 934,004.96

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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.