Home / 456,128.19-629,437.17-249,392.81

Finding the Fourth Proportional to 456,128.19, 629,437.17 and 249,392.81

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Solution

The fourth proportional to 456,128.19, 629,437.17 and 249,392.81 is: 344,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128.19 : 629,437.17 = 249,392.81 : x
  2. Step 2: Convert to fraction form
    456,128.19/629,437.17 = 249,392.81/x
  3. Step 3: Cross multiply
    456,128.19x = 629,437.17 × 249,392.81
  4. Step 4: Simplify right side
    456,128.19x = 156,977,101,397.56
  5. Step 5: Solve for x
    x = 156,977,101,397.56/456,128.19
  6. Step 6: Final answer
    x = 344,151.28

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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.