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Finding the Fourth Proportional to 623,896.80, 935,384.40 and 249,727.20

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Solution

The fourth proportional to 623,896.80, 935,384.40 and 249,727.20 is: 374,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,896.80 : 935,384.40 = 249,727.20 : x
  2. Step 2: Convert to fraction form
    623,896.80/935,384.40 = 249,727.20/x
  3. Step 3: Cross multiply
    623,896.80x = 935,384.40 × 249,727.20
  4. Step 4: Simplify right side
    623,896.80x = 233,590,927,135.68
  5. Step 5: Solve for x
    x = 233,590,927,135.68/623,896.80
  6. Step 6: Final answer
    x = 374,406.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.