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Finding the Fourth Proportional to 478,957.90, 660,966.51 and 264,105.58

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Solution

The fourth proportional to 478,957.90, 660,966.51 and 264,105.58 is: 364,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,957.90 : 660,966.51 = 264,105.58 : x
  2. Step 2: Convert to fraction form
    478,957.90/660,966.51 = 264,105.58/x
  3. Step 3: Cross multiply
    478,957.90x = 660,966.51 × 264,105.58
  4. Step 4: Simplify right side
    478,957.90x = 174,564,943,484.13
  5. Step 5: Solve for x
    x = 174,564,943,484.13/478,957.90
  6. Step 6: Final answer
    x = 364,468.24

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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.