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Finding the Fourth Proportional to 713,154.88, 984,145.44 and 386,461.36

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Solution

The fourth proportional to 713,154.88, 984,145.44 and 386,461.36 is: 533,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,154.88 : 984,145.44 = 386,461.36 : x
  2. Step 2: Convert to fraction form
    713,154.88/984,145.44 = 386,461.36/x
  3. Step 3: Cross multiply
    713,154.88x = 984,145.44 × 386,461.36
  4. Step 4: Simplify right side
    713,154.88x = 380,334,185,180.20
  5. Step 5: Solve for x
    x = 380,334,185,180.20/713,154.88
  6. Step 6: Final answer
    x = 533,312.18

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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.