Home / 942,109.17-1,300,107.01-512,396.47

Finding the Fourth Proportional to 942,109.17, 1,300,107.01 and 512,396.47

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Solution

The fourth proportional to 942,109.17, 1,300,107.01 and 512,396.47 is: 707,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,109.17 : 1,300,107.01 = 512,396.47 : x
  2. Step 2: Convert to fraction form
    942,109.17/1,300,107.01 = 512,396.47/x
  3. Step 3: Cross multiply
    942,109.17x = 1,300,107.01 × 512,396.47
  4. Step 4: Simplify right side
    942,109.17x = 666,170,242,546.26
  5. Step 5: Solve for x
    x = 666,170,242,546.26/942,109.17
  6. Step 6: Final answer
    x = 707,105.15

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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.