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Finding the Fourth Proportional to 540,719.16, 745,944.42 and 349,794.12

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Solution

The fourth proportional to 540,719.16, 745,944.42 and 349,794.12 is: 482,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,719.16 : 745,944.42 = 349,794.12 : x
  2. Step 2: Convert to fraction form
    540,719.16/745,944.42 = 349,794.12/x
  3. Step 3: Cross multiply
    540,719.16x = 745,944.42 × 349,794.12
  4. Step 4: Simplify right side
    540,719.16x = 260,926,971,962.81
  5. Step 5: Solve for x
    x = 260,926,971,962.81/540,719.16
  6. Step 6: Final answer
    x = 482,555.44

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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.