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Finding the Fourth Proportional to 673,897.76, 930,016.79 and 368,002.58

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Solution

The fourth proportional to 673,897.76, 930,016.79 and 368,002.58 is: 507,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,897.76 : 930,016.79 = 368,002.58 : x
  2. Step 2: Convert to fraction form
    673,897.76/930,016.79 = 368,002.58/x
  3. Step 3: Cross multiply
    673,897.76x = 930,016.79 × 368,002.58
  4. Step 4: Simplify right side
    673,897.76x = 342,248,573,053.23
  5. Step 5: Solve for x
    x = 342,248,573,053.23/673,897.76
  6. Step 6: Final answer
    x = 507,864.24

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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.