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Finding the Fourth Proportional to 865,774.93, 1,194,760.59 and 483,801.72

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Solution

The fourth proportional to 865,774.93, 1,194,760.59 and 483,801.72 is: 667,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,774.93 : 1,194,760.59 = 483,801.72 : x
  2. Step 2: Convert to fraction form
    865,774.93/1,194,760.59 = 483,801.72/x
  3. Step 3: Cross multiply
    865,774.93x = 1,194,760.59 × 483,801.72
  4. Step 4: Simplify right side
    865,774.93x = 578,027,228,430.22
  5. Step 5: Solve for x
    x = 578,027,228,430.22/865,774.93
  6. Step 6: Final answer
    x = 667,641.45

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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.