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Finding the Fourth Proportional to 577,897.63, 867,018.17 and 278,291.59

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Solution

The fourth proportional to 577,897.63, 867,018.17 and 278,291.59 is: 417,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,897.63 : 867,018.17 = 278,291.59 : x
  2. Step 2: Convert to fraction form
    577,897.63/867,018.17 = 278,291.59/x
  3. Step 3: Cross multiply
    577,897.63x = 867,018.17 × 278,291.59
  4. Step 4: Simplify right side
    577,897.63x = 241,283,865,088.19
  5. Step 5: Solve for x
    x = 241,283,865,088.19/577,897.63
  6. Step 6: Final answer
    x = 417,520.08

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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.