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Finding the Fourth Proportional to 668,924.34, 920,864.61 and 579,521.94

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Solution

The fourth proportional to 668,924.34, 920,864.61 and 579,521.94 is: 797,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,924.34 : 920,864.61 = 579,521.94 : x
  2. Step 2: Convert to fraction form
    668,924.34/920,864.61 = 579,521.94/x
  3. Step 3: Cross multiply
    668,924.34x = 920,864.61 × 579,521.94
  4. Step 4: Simplify right side
    668,924.34x = 533,661,245,264.54
  5. Step 5: Solve for x
    x = 533,661,245,264.54/668,924.34
  6. Step 6: Final answer
    x = 797,790.14

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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.