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Finding the Fourth Proportional to 713,008.20, 1,068,792.18 and 446,955.20

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Solution

The fourth proportional to 713,008.20, 1,068,792.18 and 446,955.20 is: 669,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,008.20 : 1,068,792.18 = 446,955.20 : x
  2. Step 2: Convert to fraction form
    713,008.20/1,068,792.18 = 446,955.20/x
  3. Step 3: Cross multiply
    713,008.20x = 1,068,792.18 × 446,955.20
  4. Step 4: Simplify right side
    713,008.20x = 477,702,222,570.34
  5. Step 5: Solve for x
    x = 477,702,222,570.34/713,008.20
  6. Step 6: Final answer
    x = 669,981.39

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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.