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Finding the Fourth Proportional to 896,689.13, 1,237,406.22 and 488,798.88

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Solution

The fourth proportional to 896,689.13, 1,237,406.22 and 488,798.88 is: 674,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,689.13 : 1,237,406.22 = 488,798.88 : x
  2. Step 2: Convert to fraction form
    896,689.13/1,237,406.22 = 488,798.88/x
  3. Step 3: Cross multiply
    896,689.13x = 1,237,406.22 × 488,798.88
  4. Step 4: Simplify right side
    896,689.13x = 604,842,774,441.03
  5. Step 5: Solve for x
    x = 604,842,774,441.03/896,689.13
  6. Step 6: Final answer
    x = 674,528.95

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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.