Home / 730,728.91-1,096,341.48-393,803.32

Finding the Fourth Proportional to 730,728.91, 1,096,341.48 and 393,803.32

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Solution

The fourth proportional to 730,728.91, 1,096,341.48 and 393,803.32 is: 590,838.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,728.91 : 1,096,341.48 = 393,803.32 : x
  2. Step 2: Convert to fraction form
    730,728.91/1,096,341.48 = 393,803.32/x
  3. Step 3: Cross multiply
    730,728.91x = 1,096,341.48 × 393,803.32
  4. Step 4: Simplify right side
    730,728.91x = 431,742,914,677.71
  5. Step 5: Solve for x
    x = 431,742,914,677.71/730,728.91
  6. Step 6: Final answer
    x = 590,838.69

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Double scale
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1.5x scale

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.