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Finding the Fourth Proportional to 540,392.04, 745,843.86 and 356,306.76

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Solution

The fourth proportional to 540,392.04, 745,843.86 and 356,306.76 is: 491,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,392.04 : 745,843.86 = 356,306.76 : x
  2. Step 2: Convert to fraction form
    540,392.04/745,843.86 = 356,306.76/x
  3. Step 3: Cross multiply
    540,392.04x = 745,843.86 × 356,306.76
  4. Step 4: Simplify right side
    540,392.04x = 265,749,209,222.49
  5. Step 5: Solve for x
    x = 265,749,209,222.49/540,392.04
  6. Step 6: Final answer
    x = 491,771.14

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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.