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Finding the Fourth Proportional to 576,736.59, 790,116 and 555,173.40

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Solution

The fourth proportional to 576,736.59, 790,116 and 555,173.40 is: 760,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,736.59 : 790,116 = 555,173.40 : x
  2. Step 2: Convert to fraction form
    576,736.59/790,116 = 555,173.40/x
  3. Step 3: Cross multiply
    576,736.59x = 790,116 × 555,173.40
  4. Step 4: Simplify right side
    576,736.59x = 438,651,386,114.40
  5. Step 5: Solve for x
    x = 438,651,386,114.40/576,736.59
  6. Step 6: Final answer
    x = 760,574.92

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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.