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Finding the Fourth Proportional to 1,866,835, 2,800,252.50 and 537,139

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Solution

The fourth proportional to 1,866,835, 2,800,252.50 and 537,139 is: 805,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,835 : 2,800,252.50 = 537,139 : x
  2. Step 2: Convert to fraction form
    1,866,835/2,800,252.50 = 537,139/x
  3. Step 3: Cross multiply
    1,866,835x = 2,800,252.50 × 537,139
  4. Step 4: Simplify right side
    1,866,835x = 1,504,124,827,597.50
  5. Step 5: Solve for x
    x = 1,504,124,827,597.50/1,866,835
  6. Step 6: Final answer
    x = 805,708.50

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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.