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Finding the Fourth Proportional to 927,883.60, 1,281,096.12 and 712,639

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Solution

The fourth proportional to 927,883.60, 1,281,096.12 and 712,639 is: 983,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,883.60 : 1,281,096.12 = 712,639 : x
  2. Step 2: Convert to fraction form
    927,883.60/1,281,096.12 = 712,639/x
  3. Step 3: Cross multiply
    927,883.60x = 1,281,096.12 × 712,639
  4. Step 4: Simplify right side
    927,883.60x = 912,959,057,860.68
  5. Step 5: Solve for x
    x = 912,959,057,860.68/927,883.60
  6. Step 6: Final answer
    x = 983,915.50

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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.