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Finding the Fourth Proportional to 859,553.20, 1,185,816 and 537,043.60

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Solution

The fourth proportional to 859,553.20, 1,185,816 and 537,043.60 is: 740,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,553.20 : 1,185,816 = 537,043.60 : x
  2. Step 2: Convert to fraction form
    859,553.20/1,185,816 = 537,043.60/x
  3. Step 3: Cross multiply
    859,553.20x = 1,185,816 × 537,043.60
  4. Step 4: Simplify right side
    859,553.20x = 636,834,893,577.60
  5. Step 5: Solve for x
    x = 636,834,893,577.60/859,553.20
  6. Step 6: Final answer
    x = 740,890.61

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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.