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Finding the Fourth Proportional to 607,049.70, 910,574.55 and 447,617.40

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Solution

The fourth proportional to 607,049.70, 910,574.55 and 447,617.40 is: 671,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,049.70 : 910,574.55 = 447,617.40 : x
  2. Step 2: Convert to fraction form
    607,049.70/910,574.55 = 447,617.40/x
  3. Step 3: Cross multiply
    607,049.70x = 910,574.55 × 447,617.40
  4. Step 4: Simplify right side
    607,049.70x = 407,589,012,577.17
  5. Step 5: Solve for x
    x = 407,589,012,577.17/607,049.70
  6. Step 6: Final answer
    x = 671,426.10

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Similar ratio
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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.