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Finding the Fourth Proportional to 476,457.30, 714,534.21 and 156,534.90

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Solution

The fourth proportional to 476,457.30, 714,534.21 and 156,534.90 is: 234,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,457.30 : 714,534.21 = 156,534.90 : x
  2. Step 2: Convert to fraction form
    476,457.30/714,534.21 = 156,534.90/x
  3. Step 3: Cross multiply
    476,457.30x = 714,534.21 × 156,534.90
  4. Step 4: Simplify right side
    476,457.30x = 111,849,541,108.93
  5. Step 5: Solve for x
    x = 111,849,541,108.93/476,457.30
  6. Step 6: Final answer
    x = 234,752.50

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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.