Home / 656,483.94-905,721.75-398,442.24

Finding the Fourth Proportional to 656,483.94, 905,721.75 and 398,442.24

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Solution

The fourth proportional to 656,483.94, 905,721.75 and 398,442.24 is: 549,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,483.94 : 905,721.75 = 398,442.24 : x
  2. Step 2: Convert to fraction form
    656,483.94/905,721.75 = 398,442.24/x
  3. Step 3: Cross multiply
    656,483.94x = 905,721.75 × 398,442.24
  4. Step 4: Simplify right side
    656,483.94x = 360,877,802,886.72
  5. Step 5: Solve for x
    x = 360,877,802,886.72/656,483.94
  6. Step 6: Final answer
    x = 549,713.07

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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.