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Finding the Fourth Proportional to 478,864.51, 660,862.80 and 264,004.25

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Solution

The fourth proportional to 478,864.51, 660,862.80 and 264,004.25 is: 364,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,864.51 : 660,862.80 = 264,004.25 : x
  2. Step 2: Convert to fraction form
    478,864.51/660,862.80 = 264,004.25/x
  3. Step 3: Cross multiply
    478,864.51x = 660,862.80 × 264,004.25
  4. Step 4: Simplify right side
    478,864.51x = 174,470,584,562.59
  5. Step 5: Solve for x
    x = 174,470,584,562.59/478,864.51
  6. Step 6: Final answer
    x = 364,342.28

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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.