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Finding the Fourth Proportional to 562,326.96, 776,022.36 and 307,683.60

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Solution

The fourth proportional to 562,326.96, 776,022.36 and 307,683.60 is: 424,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,326.96 : 776,022.36 = 307,683.60 : x
  2. Step 2: Convert to fraction form
    562,326.96/776,022.36 = 307,683.60/x
  3. Step 3: Cross multiply
    562,326.96x = 776,022.36 × 307,683.60
  4. Step 4: Simplify right side
    562,326.96x = 238,769,353,405.30
  5. Step 5: Solve for x
    x = 238,769,353,405.30/562,326.96
  6. Step 6: Final answer
    x = 424,609.47

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1.5x scale

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.