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Finding the Fourth Proportional to 424,986.82, 586,483.95 and 243,705.58

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Solution

The fourth proportional to 424,986.82, 586,483.95 and 243,705.58 is: 336,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,986.82 : 586,483.95 = 243,705.58 : x
  2. Step 2: Convert to fraction form
    424,986.82/586,483.95 = 243,705.58/x
  3. Step 3: Cross multiply
    424,986.82x = 586,483.95 × 243,705.58
  4. Step 4: Simplify right side
    424,986.82x = 142,929,411,195.44
  5. Step 5: Solve for x
    x = 142,929,411,195.44/424,986.82
  6. Step 6: Final answer
    x = 336,314.93

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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.