Home / 905,615.86-1,249,779.84-497,732.17

Finding the Fourth Proportional to 905,615.86, 1,249,779.84 and 497,732.17

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Solution

The fourth proportional to 905,615.86, 1,249,779.84 and 497,732.17 is: 686,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,615.86 : 1,249,779.84 = 497,732.17 : x
  2. Step 2: Convert to fraction form
    905,615.86/1,249,779.84 = 497,732.17/x
  3. Step 3: Cross multiply
    905,615.86x = 1,249,779.84 × 497,732.17
  4. Step 4: Simplify right side
    905,615.86x = 622,055,631,785.45
  5. Step 5: Solve for x
    x = 622,055,631,785.45/905,615.86
  6. Step 6: Final answer
    x = 686,886.86

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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.