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Finding the Fourth Proportional to 703,073.16, 970,235.40 and 380,775.84

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Solution

The fourth proportional to 703,073.16, 970,235.40 and 380,775.84 is: 525,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,073.16 : 970,235.40 = 380,775.84 : x
  2. Step 2: Convert to fraction form
    703,073.16/970,235.40 = 380,775.84/x
  3. Step 3: Cross multiply
    703,073.16x = 970,235.40 × 380,775.84
  4. Step 4: Simplify right side
    703,073.16x = 369,442,199,432.74
  5. Step 5: Solve for x
    x = 369,442,199,432.74/703,073.16
  6. Step 6: Final answer
    x = 525,467.65

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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.