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Finding the Fourth Proportional to 431,442.81, 595,411.36 and 240,457.57

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Solution

The fourth proportional to 431,442.81, 595,411.36 and 240,457.57 is: 331,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,442.81 : 595,411.36 = 240,457.57 : x
  2. Step 2: Convert to fraction form
    431,442.81/595,411.36 = 240,457.57/x
  3. Step 3: Cross multiply
    431,442.81x = 595,411.36 × 240,457.57
  4. Step 4: Simplify right side
    431,442.81x = 143,171,168,776.00
  5. Step 5: Solve for x
    x = 143,171,168,776.00/431,442.81
  6. Step 6: Final answer
    x = 331,842.75

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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.