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Finding the Fourth Proportional to 545,873.16, 753,307.95 and 316,566.41

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Solution

The fourth proportional to 545,873.16, 753,307.95 and 316,566.41 is: 436,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,873.16 : 753,307.95 = 316,566.41 : x
  2. Step 2: Convert to fraction form
    545,873.16/753,307.95 = 316,566.41/x
  3. Step 3: Cross multiply
    545,873.16x = 753,307.95 × 316,566.41
  4. Step 4: Simplify right side
    545,873.16x = 238,471,990,677.62
  5. Step 5: Solve for x
    x = 238,471,990,677.62/545,873.16
  6. Step 6: Final answer
    x = 436,863.37

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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.