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Finding the Fourth Proportional to 604,959.70, 907,439.55 and 447,495.70

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Solution

The fourth proportional to 604,959.70, 907,439.55 and 447,495.70 is: 671,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,959.70 : 907,439.55 = 447,495.70 : x
  2. Step 2: Convert to fraction form
    604,959.70/907,439.55 = 447,495.70/x
  3. Step 3: Cross multiply
    604,959.70x = 907,439.55 × 447,495.70
  4. Step 4: Simplify right side
    604,959.70x = 406,075,296,634.94
  5. Step 5: Solve for x
    x = 406,075,296,634.94/604,959.70
  6. Step 6: Final answer
    x = 671,243.55

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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.