Home / 930,612.65-1,284,217.47-517,148.03

Finding the Fourth Proportional to 930,612.65, 1,284,217.47 and 517,148.03

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Solution

The fourth proportional to 930,612.65, 1,284,217.47 and 517,148.03 is: 713,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,612.65 : 1,284,217.47 = 517,148.03 : x
  2. Step 2: Convert to fraction form
    930,612.65/1,284,217.47 = 517,148.03/x
  3. Step 3: Cross multiply
    930,612.65x = 1,284,217.47 × 517,148.03
  4. Step 4: Simplify right side
    930,612.65x = 664,130,528,281.00
  5. Step 5: Solve for x
    x = 664,130,528,281.00/930,612.65
  6. Step 6: Final answer
    x = 713,648.73

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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.