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Finding the Fourth Proportional to 514,327.32, 710,118.53 and 321,029.49

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Solution

The fourth proportional to 514,327.32, 710,118.53 and 321,029.49 is: 443,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,327.32 : 710,118.53 = 321,029.49 : x
  2. Step 2: Convert to fraction form
    514,327.32/710,118.53 = 321,029.49/x
  3. Step 3: Cross multiply
    514,327.32x = 710,118.53 × 321,029.49
  4. Step 4: Simplify right side
    514,327.32x = 227,968,991,787.11
  5. Step 5: Solve for x
    x = 227,968,991,787.11/514,327.32
  6. Step 6: Final answer
    x = 443,237.18

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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.