Home / 1,207,561.39-1,666,445.13-663,709.85

Finding the Fourth Proportional to 1,207,561.39, 1,666,445.13 and 663,709.85

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Solution

The fourth proportional to 1,207,561.39, 1,666,445.13 and 663,709.85 is: 915,925.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,561.39 : 1,666,445.13 = 663,709.85 : x
  2. Step 2: Convert to fraction form
    1,207,561.39/1,666,445.13 = 663,709.85/x
  3. Step 3: Cross multiply
    1,207,561.39x = 1,666,445.13 × 663,709.85
  4. Step 4: Simplify right side
    1,207,561.39x = 1,106,036,047,982.53
  5. Step 5: Solve for x
    x = 1,106,036,047,982.53/1,207,561.39
  6. Step 6: Final answer
    x = 915,925.32

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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.