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Finding the Fourth Proportional to 424,734.60, 637,101.90 and 346,974.60

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Solution

The fourth proportional to 424,734.60, 637,101.90 and 346,974.60 is: 520,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,734.60 : 637,101.90 = 346,974.60 : x
  2. Step 2: Convert to fraction form
    424,734.60/637,101.90 = 346,974.60/x
  3. Step 3: Cross multiply
    424,734.60x = 637,101.90 × 346,974.60
  4. Step 4: Simplify right side
    424,734.60x = 221,058,176,911.74
  5. Step 5: Solve for x
    x = 221,058,176,911.74/424,734.60
  6. Step 6: Final answer
    x = 520,461.90

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1.5x scale

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.