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Finding the Fourth Proportional to 547,070.40, 755,357.04 and 353,592.57

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Solution

The fourth proportional to 547,070.40, 755,357.04 and 353,592.57 is: 488,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,070.40 : 755,357.04 = 353,592.57 : x
  2. Step 2: Convert to fraction form
    547,070.40/755,357.04 = 353,592.57/x
  3. Step 3: Cross multiply
    547,070.40x = 755,357.04 × 353,592.57
  4. Step 4: Simplify right side
    547,070.40x = 267,088,637,041.19
  5. Step 5: Solve for x
    x = 267,088,637,041.19/547,070.40
  6. Step 6: Final answer
    x = 488,216.21

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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.