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Finding the Fourth Proportional to 343,277.60, 514,916.40 and 231,303.20

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Solution

The fourth proportional to 343,277.60, 514,916.40 and 231,303.20 is: 346,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,277.60 : 514,916.40 = 231,303.20 : x
  2. Step 2: Convert to fraction form
    343,277.60/514,916.40 = 231,303.20/x
  3. Step 3: Cross multiply
    343,277.60x = 514,916.40 × 231,303.20
  4. Step 4: Simplify right side
    343,277.60x = 119,101,811,052.48
  5. Step 5: Solve for x
    x = 119,101,811,052.48/343,277.60
  6. Step 6: Final answer
    x = 346,954.80

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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.