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Finding the Fourth Proportional to 540,718.16, 745,943.04 and 349,793.12

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Solution

The fourth proportional to 540,718.16, 745,943.04 and 349,793.12 is: 482,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,718.16 : 745,943.04 = 349,793.12 : x
  2. Step 2: Convert to fraction form
    540,718.16/745,943.04 = 349,793.12/x
  3. Step 3: Cross multiply
    540,718.16x = 745,943.04 × 349,793.12
  4. Step 4: Simplify right side
    540,718.16x = 260,925,743,303.89
  5. Step 5: Solve for x
    x = 260,925,743,303.89/540,718.16
  6. Step 6: Final answer
    x = 482,554.06

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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.