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Finding the Fourth Proportional to 703,011.19, 970,150.60 and 380,713.91

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Solution

The fourth proportional to 703,011.19, 970,150.60 and 380,713.91 is: 525,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,011.19 : 970,150.60 = 380,713.91 : x
  2. Step 2: Convert to fraction form
    703,011.19/970,150.60 = 380,713.91/x
  3. Step 3: Cross multiply
    703,011.19x = 970,150.60 × 380,713.91
  4. Step 4: Simplify right side
    703,011.19x = 369,349,828,214.85
  5. Step 5: Solve for x
    x = 369,349,828,214.85/703,011.19
  6. Step 6: Final answer
    x = 525,382.57

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Double scale
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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.