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Finding the Fourth Proportional to 1,244,543, 1,866,814.50 and 358,079

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Solution

The fourth proportional to 1,244,543, 1,866,814.50 and 358,079 is: 537,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,543 : 1,866,814.50 = 358,079 : x
  2. Step 2: Convert to fraction form
    1,244,543/1,866,814.50 = 358,079/x
  3. Step 3: Cross multiply
    1,244,543x = 1,866,814.50 × 358,079
  4. Step 4: Simplify right side
    1,244,543x = 668,467,069,345.50
  5. Step 5: Solve for x
    x = 668,467,069,345.50/1,244,543
  6. Step 6: Final answer
    x = 537,118.50

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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.