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Finding the Fourth Proportional to 576,749.32, 790,133.38 and 555,186.08

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Solution

The fourth proportional to 576,749.32, 790,133.38 and 555,186.08 is: 760,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,749.32 : 790,133.38 = 555,186.08 : x
  2. Step 2: Convert to fraction form
    576,749.32/790,133.38 = 555,186.08/x
  3. Step 3: Cross multiply
    576,749.32x = 790,133.38 × 555,186.08
  4. Step 4: Simplify right side
    576,749.32x = 438,671,053,919.35
  5. Step 5: Solve for x
    x = 438,671,053,919.35/576,749.32
  6. Step 6: Final answer
    x = 760,592.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.