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Finding the Fourth Proportional to 616,830.11, 922,686.37 and 579,038.75

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Solution

The fourth proportional to 616,830.11, 922,686.37 and 579,038.75 is: 866,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,830.11 : 922,686.37 = 579,038.75 : x
  2. Step 2: Convert to fraction form
    616,830.11/922,686.37 = 579,038.75/x
  3. Step 3: Cross multiply
    616,830.11x = 922,686.37 × 579,038.75
  4. Step 4: Simplify right side
    616,830.11x = 534,271,162,326.84
  5. Step 5: Solve for x
    x = 534,271,162,326.84/616,830.11
  6. Step 6: Final answer
    x = 866,156.10

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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.