Home / 865,661.36-1,194,606.17-478,502.22

Finding the Fourth Proportional to 865,661.36, 1,194,606.17 and 478,502.22

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Solution

The fourth proportional to 865,661.36, 1,194,606.17 and 478,502.22 is: 660,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,661.36 : 1,194,606.17 = 478,502.22 : x
  2. Step 2: Convert to fraction form
    865,661.36/1,194,606.17 = 478,502.22/x
  3. Step 3: Cross multiply
    865,661.36x = 1,194,606.17 × 478,502.22
  4. Step 4: Simplify right side
    865,661.36x = 571,621,701,978.19
  5. Step 5: Solve for x
    x = 571,621,701,978.19/865,661.36
  6. Step 6: Final answer
    x = 660,329.47

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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.