Home / 838,148.88-1,156,645.39-456,178.40

Finding the Fourth Proportional to 838,148.88, 1,156,645.39 and 456,178.40

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Solution

The fourth proportional to 838,148.88, 1,156,645.39 and 456,178.40 is: 629,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,148.88 : 1,156,645.39 = 456,178.40 : x
  2. Step 2: Convert to fraction form
    838,148.88/1,156,645.39 = 456,178.40/x
  3. Step 3: Cross multiply
    838,148.88x = 1,156,645.39 × 456,178.40
  4. Step 4: Simplify right side
    838,148.88x = 527,636,643,377.58
  5. Step 5: Solve for x
    x = 527,636,643,377.58/838,148.88
  6. Step 6: Final answer
    x = 629,526.16

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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.