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Finding the Fourth Proportional to 556,043.40, 834,842.70 and 346,091.40

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Solution

The fourth proportional to 556,043.40, 834,842.70 and 346,091.40 is: 519,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,043.40 : 834,842.70 = 346,091.40 : x
  2. Step 2: Convert to fraction form
    556,043.40/834,842.70 = 346,091.40/x
  3. Step 3: Cross multiply
    556,043.40x = 834,842.70 × 346,091.40
  4. Step 4: Simplify right side
    556,043.40x = 288,931,878,822.78
  5. Step 5: Solve for x
    x = 288,931,878,822.78/556,043.40
  6. Step 6: Final answer
    x = 519,621.09

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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.