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Finding the Fourth Proportional to 386,374.68, 533,196.70 and 216,608.84

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Solution

The fourth proportional to 386,374.68, 533,196.70 and 216,608.84 is: 298,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,374.68 : 533,196.70 = 216,608.84 : x
  2. Step 2: Convert to fraction form
    386,374.68/533,196.70 = 216,608.84/x
  3. Step 3: Cross multiply
    386,374.68x = 533,196.70 × 216,608.84
  4. Step 4: Simplify right side
    386,374.68x = 115,495,118,678.83
  5. Step 5: Solve for x
    x = 115,495,118,678.83/386,374.68
  6. Step 6: Final answer
    x = 298,920.00

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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.