Home / 993,534.10-1,489,465.22-432,145.78

Finding the Fourth Proportional to 993,534.10, 1,489,465.22 and 432,145.78

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Solution

The fourth proportional to 993,534.10, 1,489,465.22 and 432,145.78 is: 647,855.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,534.10 : 1,489,465.22 = 432,145.78 : x
  2. Step 2: Convert to fraction form
    993,534.10/1,489,465.22 = 432,145.78/x
  3. Step 3: Cross multiply
    993,534.10x = 1,489,465.22 × 432,145.78
  4. Step 4: Simplify right side
    993,534.10x = 643,666,109,279.77
  5. Step 5: Solve for x
    x = 643,666,109,279.77/993,534.10
  6. Step 6: Final answer
    x = 647,855.08

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1.5x scale

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.