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Finding the Fourth Proportional to 615,907.20, 923,774.40 and 195,225.60

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Solution

The fourth proportional to 615,907.20, 923,774.40 and 195,225.60 is: 292,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,907.20 : 923,774.40 = 195,225.60 : x
  2. Step 2: Convert to fraction form
    615,907.20/923,774.40 = 195,225.60/x
  3. Step 3: Cross multiply
    615,907.20x = 923,774.40 × 195,225.60
  4. Step 4: Simplify right side
    615,907.20x = 180,344,411,504.64
  5. Step 5: Solve for x
    x = 180,344,411,504.64/615,907.20
  6. Step 6: Final answer
    x = 292,811.01

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1.5x scale

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.