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Finding the Fourth Proportional to 654,800.76, 903,618.47 and 364,407.46

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Solution

The fourth proportional to 654,800.76, 903,618.47 and 364,407.46 is: 502,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,800.76 : 903,618.47 = 364,407.46 : x
  2. Step 2: Convert to fraction form
    654,800.76/903,618.47 = 364,407.46/x
  3. Step 3: Cross multiply
    654,800.76x = 903,618.47 × 364,407.46
  4. Step 4: Simplify right side
    654,800.76x = 329,285,311,461.79
  5. Step 5: Solve for x
    x = 329,285,311,461.79/654,800.76
  6. Step 6: Final answer
    x = 502,878.63

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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.