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Finding the Fourth Proportional to 863,311,807.04, 1,294,978,733.56 and 249,896,623.28

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Solution

The fourth proportional to 863,311,807.04, 1,294,978,733.56 and 249,896,623.28 is: 374,848,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,311,807.04 : 1,294,978,733.56 = 249,896,623.28 : x
  2. Step 2: Convert to fraction form
    863,311,807.04/1,294,978,733.56 = 249,896,623.28/x
  3. Step 3: Cross multiply
    863,311,807.04x = 1,294,978,733.56 × 249,896,623.28
  4. Step 4: Simplify right side
    863,311,807.04x = 323,610,812,736,054,784
  5. Step 5: Solve for x
    x = 323,610,812,736,054,784/863,311,807.04
  6. Step 6: Final answer
    x = 374,848,125.67

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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.