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Finding the Fourth Proportional to 374,921.80, 562,382.70 and 346,053.40

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Solution

The fourth proportional to 374,921.80, 562,382.70 and 346,053.40 is: 519,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,921.80 : 562,382.70 = 346,053.40 : x
  2. Step 2: Convert to fraction form
    374,921.80/562,382.70 = 346,053.40/x
  3. Step 3: Cross multiply
    374,921.80x = 562,382.70 × 346,053.40
  4. Step 4: Simplify right side
    374,921.80x = 194,614,445,436.18
  5. Step 5: Solve for x
    x = 194,614,445,436.18/374,921.80
  6. Step 6: Final answer
    x = 519,080.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.