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Finding the Fourth Proportional to 343,266.40, 514,899.60 and 185,802.40

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Solution

The fourth proportional to 343,266.40, 514,899.60 and 185,802.40 is: 278,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,266.40 : 514,899.60 = 185,802.40 : x
  2. Step 2: Convert to fraction form
    343,266.40/514,899.60 = 185,802.40/x
  3. Step 3: Cross multiply
    343,266.40x = 514,899.60 × 185,802.40
  4. Step 4: Simplify right side
    343,266.40x = 95,669,581,439.04
  5. Step 5: Solve for x
    x = 95,669,581,439.04/343,266.40
  6. Step 6: Final answer
    x = 278,703.60

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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.