Home / 905,611.02-1,249,661.88-497,708.40

Finding the Fourth Proportional to 905,611.02, 1,249,661.88 and 497,708.40

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Solution

The fourth proportional to 905,611.02, 1,249,661.88 and 497,708.40 is: 686,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,611.02 : 1,249,661.88 = 497,708.40 : x
  2. Step 2: Convert to fraction form
    905,611.02/1,249,661.88 = 497,708.40/x
  3. Step 3: Cross multiply
    905,611.02x = 1,249,661.88 × 497,708.40
  4. Step 4: Simplify right side
    905,611.02x = 621,967,214,835.79
  5. Step 5: Solve for x
    x = 621,967,214,835.79/905,611.02
  6. Step 6: Final answer
    x = 686,792.90

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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.