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Finding the Fourth Proportional to 567,869.87, 783,662.88 and 309,752.37

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Solution

The fourth proportional to 567,869.87, 783,662.88 and 309,752.37 is: 427,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,869.87 : 783,662.88 = 309,752.37 : x
  2. Step 2: Convert to fraction form
    567,869.87/783,662.88 = 309,752.37/x
  3. Step 3: Cross multiply
    567,869.87x = 783,662.88 × 309,752.37
  4. Step 4: Simplify right side
    567,869.87x = 242,741,429,602.98
  5. Step 5: Solve for x
    x = 242,741,429,602.98/567,869.87
  6. Step 6: Final answer
    x = 427,459.60

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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.