Home / 905,632.62-1,249,779.75-497,741.40

Finding the Fourth Proportional to 905,632.62, 1,249,779.75 and 497,741.40

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Solution

The fourth proportional to 905,632.62, 1,249,779.75 and 497,741.40 is: 686,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,632.62 : 1,249,779.75 = 497,741.40 : x
  2. Step 2: Convert to fraction form
    905,632.62/1,249,779.75 = 497,741.40/x
  3. Step 3: Cross multiply
    905,632.62x = 1,249,779.75 × 497,741.40
  4. Step 4: Simplify right side
    905,632.62x = 622,067,122,456.65
  5. Step 5: Solve for x
    x = 622,067,122,456.65/905,632.62
  6. Step 6: Final answer
    x = 686,886.83

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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.