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Finding the Fourth Proportional to 585,851.21, 808,424.37 and 340,881.29

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Solution

The fourth proportional to 585,851.21, 808,424.37 and 340,881.29 is: 470,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,851.21 : 808,424.37 = 340,881.29 : x
  2. Step 2: Convert to fraction form
    585,851.21/808,424.37 = 340,881.29/x
  3. Step 3: Cross multiply
    585,851.21x = 808,424.37 × 340,881.29
  4. Step 4: Simplify right side
    585,851.21x = 275,576,742,113.04
  5. Step 5: Solve for x
    x = 275,576,742,113.04/585,851.21
  6. Step 6: Final answer
    x = 470,386.91

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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.