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Finding the Fourth Proportional to 677,805.84, 936,345.36 and 541,661.28

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Solution

The fourth proportional to 677,805.84, 936,345.36 and 541,661.28 is: 748,270.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,805.84 : 936,345.36 = 541,661.28 : x
  2. Step 2: Convert to fraction form
    677,805.84/936,345.36 = 541,661.28/x
  3. Step 3: Cross multiply
    677,805.84x = 936,345.36 × 541,661.28
  4. Step 4: Simplify right side
    677,805.84x = 507,182,026,219.66
  5. Step 5: Solve for x
    x = 507,182,026,219.66/677,805.84
  6. Step 6: Final answer
    x = 748,270.37

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Double scale
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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.