Home / 942,115.14-1,300,081.53-512,395.16

Finding the Fourth Proportional to 942,115.14, 1,300,081.53 and 512,395.16

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Solution

The fourth proportional to 942,115.14, 1,300,081.53 and 512,395.16 is: 707,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,115.14 : 1,300,081.53 = 512,395.16 : x
  2. Step 2: Convert to fraction form
    942,115.14/1,300,081.53 = 512,395.16/x
  3. Step 3: Cross multiply
    942,115.14x = 1,300,081.53 × 512,395.16
  4. Step 4: Simplify right side
    942,115.14x = 666,155,477,076.99
  5. Step 5: Solve for x
    x = 666,155,477,076.99/942,115.14
  6. Step 6: Final answer
    x = 707,084.99

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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.