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Finding the Fourth Proportional to 400,685.76, 552,946.56 and 249,783.36

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Solution

The fourth proportional to 400,685.76, 552,946.56 and 249,783.36 is: 344,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,685.76 : 552,946.56 = 249,783.36 : x
  2. Step 2: Convert to fraction form
    400,685.76/552,946.56 = 249,783.36/x
  3. Step 3: Cross multiply
    400,685.76x = 552,946.56 × 249,783.36
  4. Step 4: Simplify right side
    400,685.76x = 138,116,849,657.24
  5. Step 5: Solve for x
    x = 138,116,849,657.24/400,685.76
  6. Step 6: Final answer
    x = 344,701.17

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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.