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Finding the Fourth Proportional to 623,869.60, 935,970.18 and 197,413

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Solution

The fourth proportional to 623,869.60, 935,970.18 and 197,413 is: 296,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,869.60 : 935,970.18 = 197,413 : x
  2. Step 2: Convert to fraction form
    623,869.60/935,970.18 = 197,413/x
  3. Step 3: Cross multiply
    623,869.60x = 935,970.18 × 197,413
  4. Step 4: Simplify right side
    623,869.60x = 184,772,681,144.34
  5. Step 5: Solve for x
    x = 184,772,681,144.34/623,869.60
  6. Step 6: Final answer
    x = 296,171.96

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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.