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Finding the Fourth Proportional to 282,398.53, 389,714.44 and 153,336.93

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Solution

The fourth proportional to 282,398.53, 389,714.44 and 153,336.93 is: 211,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,398.53 : 389,714.44 = 153,336.93 : x
  2. Step 2: Convert to fraction form
    282,398.53/389,714.44 = 153,336.93/x
  3. Step 3: Cross multiply
    282,398.53x = 389,714.44 × 153,336.93
  4. Step 4: Simplify right side
    282,398.53x = 59,757,615,806.27
  5. Step 5: Solve for x
    x = 59,757,615,806.27/282,398.53
  6. Step 6: Final answer
    x = 211,607.39

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1.5x scale

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.