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Finding the Fourth Proportional to 2,842,801.05, 3,923,055.93 and 1,553,641.08

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Solution

The fourth proportional to 2,842,801.05, 3,923,055.93 and 1,553,641.08 is: 2,144,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842,801.05 : 3,923,055.93 = 1,553,641.08 : x
  2. Step 2: Convert to fraction form
    2,842,801.05/3,923,055.93 = 1,553,641.08/x
  3. Step 3: Cross multiply
    2,842,801.05x = 3,923,055.93 × 1,553,641.08
  4. Step 4: Simplify right side
    2,842,801.05x = 6,095,020,851,985.61
  5. Step 5: Solve for x
    x = 6,095,020,851,985.61/2,842,801.05
  6. Step 6: Final answer
    x = 2,144,019.49

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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.