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Finding the Fourth Proportional to 785,656.96, 1,084,168 and 446,080.64

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Solution

The fourth proportional to 785,656.96, 1,084,168 and 446,080.64 is: 615,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,656.96 : 1,084,168 = 446,080.64 : x
  2. Step 2: Convert to fraction form
    785,656.96/1,084,168 = 446,080.64/x
  3. Step 3: Cross multiply
    785,656.96x = 1,084,168 × 446,080.64
  4. Step 4: Simplify right side
    785,656.96x = 483,626,355,307.52
  5. Step 5: Solve for x
    x = 483,626,355,307.52/785,656.96
  6. Step 6: Final answer
    x = 615,569.36

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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.