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Finding the Fourth Proportional to 760,533.12, 1,049,544 and 421,007.04

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Solution

The fourth proportional to 760,533.12, 1,049,544 and 421,007.04 is: 580,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,533.12 : 1,049,544 = 421,007.04 : x
  2. Step 2: Convert to fraction form
    760,533.12/1,049,544 = 421,007.04/x
  3. Step 3: Cross multiply
    760,533.12x = 1,049,544 × 421,007.04
  4. Step 4: Simplify right side
    760,533.12x = 441,865,412,789.76
  5. Step 5: Solve for x
    x = 441,865,412,789.76/760,533.12
  6. Step 6: Final answer
    x = 580,994.31

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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.