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Finding the Fourth Proportional to 293,215.70, 439,305.15 and 260,038.10

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Solution

The fourth proportional to 293,215.70, 439,305.15 and 260,038.10 is: 389,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,215.70 : 439,305.15 = 260,038.10 : x
  2. Step 2: Convert to fraction form
    293,215.70/439,305.15 = 260,038.10/x
  3. Step 3: Cross multiply
    293,215.70x = 439,305.15 × 260,038.10
  4. Step 4: Simplify right side
    293,215.70x = 114,236,076,526.22
  5. Step 5: Solve for x
    x = 114,236,076,526.22/293,215.70
  6. Step 6: Final answer
    x = 389,597.41

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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.