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Finding the Fourth Proportional to 448,864.94, 619,390.59 and 247,647.98

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Solution

The fourth proportional to 448,864.94, 619,390.59 and 247,647.98 is: 341,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,864.94 : 619,390.59 = 247,647.98 : x
  2. Step 2: Convert to fraction form
    448,864.94/619,390.59 = 247,647.98/x
  3. Step 3: Cross multiply
    448,864.94x = 619,390.59 × 247,647.98
  4. Step 4: Simplify right side
    448,864.94x = 153,390,828,444.51
  5. Step 5: Solve for x
    x = 153,390,828,444.51/448,864.94
  6. Step 6: Final answer
    x = 341,730.47

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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.