Home / 1,328,588.61-1,993,199.36-430,030.50

Finding the Fourth Proportional to 1,328,588.61, 1,993,199.36 and 430,030.50

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Solution

The fourth proportional to 1,328,588.61, 1,993,199.36 and 430,030.50 is: 645,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,588.61 : 1,993,199.36 = 430,030.50 : x
  2. Step 2: Convert to fraction form
    1,328,588.61/1,993,199.36 = 430,030.50/x
  3. Step 3: Cross multiply
    1,328,588.61x = 1,993,199.36 × 430,030.50
  4. Step 4: Simplify right side
    1,328,588.61x = 857,136,515,230.33
  5. Step 5: Solve for x
    x = 857,136,515,230.33/1,328,588.61
  6. Step 6: Final answer
    x = 645,148.17

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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.