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Finding the Fourth Proportional to 448,705, 619,256.64 and 247,501

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Solution

The fourth proportional to 448,705, 619,256.64 and 247,501 is: 341,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,705 : 619,256.64 = 247,501 : x
  2. Step 2: Convert to fraction form
    448,705/619,256.64 = 247,501/x
  3. Step 3: Cross multiply
    448,705x = 619,256.64 × 247,501
  4. Step 4: Simplify right side
    448,705x = 153,266,637,656.64
  5. Step 5: Solve for x
    x = 153,266,637,656.64/448,705
  6. Step 6: Final answer
    x = 341,575.51

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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.