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Finding the Fourth Proportional to 710,848.44, 980,812.80 and 409,042.44

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Solution

The fourth proportional to 710,848.44, 980,812.80 and 409,042.44 is: 564,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,848.44 : 980,812.80 = 409,042.44 : x
  2. Step 2: Convert to fraction form
    710,848.44/980,812.80 = 409,042.44/x
  3. Step 3: Cross multiply
    710,848.44x = 980,812.80 × 409,042.44
  4. Step 4: Simplify right side
    710,848.44x = 401,194,060,895.23
  5. Step 5: Solve for x
    x = 401,194,060,895.23/710,848.44
  6. Step 6: Final answer
    x = 564,387.62

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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.