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Finding the Fourth Proportional to 965,505.76, 1,332,377.76 and 535,782.40

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Solution

The fourth proportional to 965,505.76, 1,332,377.76 and 535,782.40 is: 739,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,505.76 : 1,332,377.76 = 535,782.40 : x
  2. Step 2: Convert to fraction form
    965,505.76/1,332,377.76 = 535,782.40/x
  3. Step 3: Cross multiply
    965,505.76x = 1,332,377.76 × 535,782.40
  4. Step 4: Simplify right side
    965,505.76x = 713,864,553,959.42
  5. Step 5: Solve for x
    x = 713,864,553,959.42/965,505.76
  6. Step 6: Final answer
    x = 739,368.51

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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.