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Finding the Fourth Proportional to 927,433.60, 1,391,409.60 and 454,134.40

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Solution

The fourth proportional to 927,433.60, 1,391,409.60 and 454,134.40 is: 681,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,433.60 : 1,391,409.60 = 454,134.40 : x
  2. Step 2: Convert to fraction form
    927,433.60/1,391,409.60 = 454,134.40/x
  3. Step 3: Cross multiply
    927,433.60x = 1,391,409.60 × 454,134.40
  4. Step 4: Simplify right side
    927,433.60x = 631,886,963,850.24
  5. Step 5: Solve for x
    x = 631,886,963,850.24/927,433.60
  6. Step 6: Final answer
    x = 681,328.52

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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.