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Finding the Fourth Proportional to 627,683.04, 866,137.86 and 372,985.02

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Solution

The fourth proportional to 627,683.04, 866,137.86 and 372,985.02 is: 514,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,683.04 : 866,137.86 = 372,985.02 : x
  2. Step 2: Convert to fraction form
    627,683.04/866,137.86 = 372,985.02/x
  3. Step 3: Cross multiply
    627,683.04x = 866,137.86 × 372,985.02
  4. Step 4: Simplify right side
    627,683.04x = 323,056,447,034.86
  5. Step 5: Solve for x
    x = 323,056,447,034.86/627,683.04
  6. Step 6: Final answer
    x = 514,680.86

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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.