Home / 629,124.77-868,161.19-357,156.98

Finding the Fourth Proportional to 629,124.77, 868,161.19 and 357,156.98

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Solution

The fourth proportional to 629,124.77, 868,161.19 and 357,156.98 is: 492,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,124.77 : 868,161.19 = 357,156.98 : x
  2. Step 2: Convert to fraction form
    629,124.77/868,161.19 = 357,156.98/x
  3. Step 3: Cross multiply
    629,124.77x = 868,161.19 × 357,156.98
  4. Step 4: Simplify right side
    629,124.77x = 310,069,822,647.02
  5. Step 5: Solve for x
    x = 310,069,822,647.02/629,124.77
  6. Step 6: Final answer
    x = 492,859.03

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1.5x scale

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.