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Finding the Fourth Proportional to 1,698,623.75, 2,547,935.60 and 619,217.24

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Solution

The fourth proportional to 1,698,623.75, 2,547,935.60 and 619,217.24 is: 928,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,623.75 : 2,547,935.60 = 619,217.24 : x
  2. Step 2: Convert to fraction form
    1,698,623.75/2,547,935.60 = 619,217.24/x
  3. Step 3: Cross multiply
    1,698,623.75x = 2,547,935.60 × 619,217.24
  4. Step 4: Simplify right side
    1,698,623.75x = 1,577,725,646,833.66
  5. Step 5: Solve for x
    x = 1,577,725,646,833.66/1,698,623.75
  6. Step 6: Final answer
    x = 928,825.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.