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Finding the Fourth Proportional to 848,009.80, 1,190,363 and 848,009.80

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Solution

The fourth proportional to 848,009.80, 1,190,363 and 848,009.80 is: 1,190,363

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,009.80 : 1,190,363 = 848,009.80 : x
  2. Step 2: Convert to fraction form
    848,009.80/1,190,363 = 848,009.80/x
  3. Step 3: Cross multiply
    848,009.80x = 1,190,363 × 848,009.80
  4. Step 4: Simplify right side
    848,009.80x = 1,009,439,489,557.40
  5. Step 5: Solve for x
    x = 1,009,439,489,557.40/848,009.80
  6. Step 6: Final answer
    x = 1,190,363

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.