Home / 905,662.40-1,249,827.05-497,801.96

Finding the Fourth Proportional to 905,662.40, 1,249,827.05 and 497,801.96

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Solution

The fourth proportional to 905,662.40, 1,249,827.05 and 497,801.96 is: 686,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,662.40 : 1,249,827.05 = 497,801.96 : x
  2. Step 2: Convert to fraction form
    905,662.40/1,249,827.05 = 497,801.96/x
  3. Step 3: Cross multiply
    905,662.40x = 1,249,827.05 × 497,801.96
  4. Step 4: Simplify right side
    905,662.40x = 622,166,350,146.39
  5. Step 5: Solve for x
    x = 622,166,350,146.39/905,662.40
  6. Step 6: Final answer
    x = 686,973.81

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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.