Home / 629,488.13-868,666.41-357,555.20

Finding the Fourth Proportional to 629,488.13, 868,666.41 and 357,555.20

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Solution

The fourth proportional to 629,488.13, 868,666.41 and 357,555.20 is: 493,410.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,488.13 : 868,666.41 = 357,555.20 : x
  2. Step 2: Convert to fraction form
    629,488.13/868,666.41 = 357,555.20/x
  3. Step 3: Cross multiply
    629,488.13x = 868,666.41 × 357,555.20
  4. Step 4: Simplify right side
    629,488.13x = 310,596,187,617.50
  5. Step 5: Solve for x
    x = 310,596,187,617.50/629,488.13
  6. Step 6: Final answer
    x = 493,410.72

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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.