Home / 1,212,256.12-1,817,857.13-347,500.59

Finding the Fourth Proportional to 1,212,256.12, 1,817,857.13 and 347,500.59

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Solution

The fourth proportional to 1,212,256.12, 1,817,857.13 and 347,500.59 is: 521,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,256.12 : 1,817,857.13 = 347,500.59 : x
  2. Step 2: Convert to fraction form
    1,212,256.12/1,817,857.13 = 347,500.59/x
  3. Step 3: Cross multiply
    1,212,256.12x = 1,817,857.13 × 347,500.59
  4. Step 4: Simplify right side
    1,212,256.12x = 631,706,425,210.71
  5. Step 5: Solve for x
    x = 631,706,425,210.71/1,212,256.12
  6. Step 6: Final answer
    x = 521,099.80

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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.