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Finding the Fourth Proportional to 575,704.48, 795,091.80 and 438,272.32

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Solution

The fourth proportional to 575,704.48, 795,091.80 and 438,272.32 is: 605,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,704.48 : 795,091.80 = 438,272.32 : x
  2. Step 2: Convert to fraction form
    575,704.48/795,091.80 = 438,272.32/x
  3. Step 3: Cross multiply
    575,704.48x = 795,091.80 × 438,272.32
  4. Step 4: Simplify right side
    575,704.48x = 348,466,727,798.98
  5. Step 5: Solve for x
    x = 348,466,727,798.98/575,704.48
  6. Step 6: Final answer
    x = 605,287.50

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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.