Home / 939,315.23-1,296,257.53-509,595.37

Finding the Fourth Proportional to 939,315.23, 1,296,257.53 and 509,595.37

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Solution

The fourth proportional to 939,315.23, 1,296,257.53 and 509,595.37 is: 703,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,315.23 : 1,296,257.53 = 509,595.37 : x
  2. Step 2: Convert to fraction form
    939,315.23/1,296,257.53 = 509,595.37/x
  3. Step 3: Cross multiply
    939,315.23x = 1,296,257.53 × 509,595.37
  4. Step 4: Simplify right side
    939,315.23x = 660,566,832,056.50
  5. Step 5: Solve for x
    x = 660,566,832,056.50/939,315.23
  6. Step 6: Final answer
    x = 703,242.97

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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.