Home / 638,784.27-958,176.81-358,498.35

Finding the Fourth Proportional to 638,784.27, 958,176.81 and 358,498.35

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Solution

The fourth proportional to 638,784.27, 958,176.81 and 358,498.35 is: 537,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,784.27 : 958,176.81 = 358,498.35 : x
  2. Step 2: Convert to fraction form
    638,784.27/958,176.81 = 358,498.35/x
  3. Step 3: Cross multiply
    638,784.27x = 958,176.81 × 358,498.35
  4. Step 4: Simplify right side
    638,784.27x = 343,504,805,393.26
  5. Step 5: Solve for x
    x = 343,504,805,393.26/638,784.27
  6. Step 6: Final answer
    x = 537,747.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.