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Finding the Fourth Proportional to 578,112.23, 797,264.79 and 496,412.69

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Solution

The fourth proportional to 578,112.23, 797,264.79 and 496,412.69 is: 684,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,112.23 : 797,264.79 = 496,412.69 : x
  2. Step 2: Convert to fraction form
    578,112.23/797,264.79 = 496,412.69/x
  3. Step 3: Cross multiply
    578,112.23x = 797,264.79 × 496,412.69
  4. Step 4: Simplify right side
    578,112.23x = 395,772,359,046.19
  5. Step 5: Solve for x
    x = 395,772,359,046.19/578,112.23
  6. Step 6: Final answer
    x = 684,594.34

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Double scale
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Similar ratio
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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.