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Finding the Fourth Proportional to 590,805.69, 815,307.70 and 322,533.69

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Solution

The fourth proportional to 590,805.69, 815,307.70 and 322,533.69 is: 445,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,805.69 : 815,307.70 = 322,533.69 : x
  2. Step 2: Convert to fraction form
    590,805.69/815,307.70 = 322,533.69/x
  3. Step 3: Cross multiply
    590,805.69x = 815,307.70 × 322,533.69
  4. Step 4: Simplify right side
    590,805.69x = 262,964,200,966.41
  5. Step 5: Solve for x
    x = 262,964,200,966.41/590,805.69
  6. Step 6: Final answer
    x = 445,094.23

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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.