Home / 642,176.28-885,965.34-415,946.52

Finding the Fourth Proportional to 642,176.28, 885,965.34 and 415,946.52

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Solution

The fourth proportional to 642,176.28, 885,965.34 and 415,946.52 is: 573,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,176.28 : 885,965.34 = 415,946.52 : x
  2. Step 2: Convert to fraction form
    642,176.28/885,965.34 = 415,946.52/x
  3. Step 3: Cross multiply
    642,176.28x = 885,965.34 × 415,946.52
  4. Step 4: Simplify right side
    642,176.28x = 368,514,200,013.62
  5. Step 5: Solve for x
    x = 368,514,200,013.62/642,176.28
  6. Step 6: Final answer
    x = 573,852.09

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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.