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Finding the Fourth Proportional to 708,969.16, 1,060,955.70 and 442,855

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Solution

The fourth proportional to 708,969.16, 1,060,955.70 and 442,855 is: 662,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,969.16 : 1,060,955.70 = 442,855 : x
  2. Step 2: Convert to fraction form
    708,969.16/1,060,955.70 = 442,855/x
  3. Step 3: Cross multiply
    708,969.16x = 1,060,955.70 × 442,855
  4. Step 4: Simplify right side
    708,969.16x = 469,849,536,523.50
  5. Step 5: Solve for x
    x = 469,849,536,523.50/708,969.16
  6. Step 6: Final answer
    x = 662,722.11

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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.