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Finding the Fourth Proportional to 615,623.60, 923,435.40 and 424,852.40

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Solution

The fourth proportional to 615,623.60, 923,435.40 and 424,852.40 is: 637,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,623.60 : 923,435.40 = 424,852.40 : x
  2. Step 2: Convert to fraction form
    615,623.60/923,435.40 = 424,852.40/x
  3. Step 3: Cross multiply
    615,623.60x = 923,435.40 × 424,852.40
  4. Step 4: Simplify right side
    615,623.60x = 392,323,745,934.96
  5. Step 5: Solve for x
    x = 392,323,745,934.96/615,623.60
  6. Step 6: Final answer
    x = 637,278.60

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