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Finding the Fourth Proportional to 531,399.60, 798,328.20 and 365,511.60

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Solution

The fourth proportional to 531,399.60, 798,328.20 and 365,511.60 is: 549,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,399.60 : 798,328.20 = 365,511.60 : x
  2. Step 2: Convert to fraction form
    531,399.60/798,328.20 = 365,511.60/x
  3. Step 3: Cross multiply
    531,399.60x = 798,328.20 × 365,511.60
  4. Step 4: Simplify right side
    531,399.60x = 291,798,217,707.12
  5. Step 5: Solve for x
    x = 291,798,217,707.12/531,399.60
  6. Step 6: Final answer
    x = 549,112.60

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1.5x scale

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.