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Finding the Fourth Proportional to 743,833, 1,026,485.70 and 404,303.08

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Solution

The fourth proportional to 743,833, 1,026,485.70 and 404,303.08 is: 557,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,833 : 1,026,485.70 = 404,303.08 : x
  2. Step 2: Convert to fraction form
    743,833/1,026,485.70 = 404,303.08/x
  3. Step 3: Cross multiply
    743,833x = 1,026,485.70 × 404,303.08
  4. Step 4: Simplify right side
    743,833x = 415,011,330,085.96
  5. Step 5: Solve for x
    x = 415,011,330,085.96/743,833
  6. Step 6: Final answer
    x = 557,936.16

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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.