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Finding the Fourth Proportional to 577,779.54, 797,085 and 348,206.37

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Solution

The fourth proportional to 577,779.54, 797,085 and 348,206.37 is: 480,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,779.54 : 797,085 = 348,206.37 : x
  2. Step 2: Convert to fraction form
    577,779.54/797,085 = 348,206.37/x
  3. Step 3: Cross multiply
    577,779.54x = 797,085 × 348,206.37
  4. Step 4: Simplify right side
    577,779.54x = 277,550,074,431.45
  5. Step 5: Solve for x
    x = 277,550,074,431.45/577,779.54
  6. Step 6: Final answer
    x = 480,373.66

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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.