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Finding the Fourth Proportional to 346,507.40, 519,323.70 and 252,903.80

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Solution

The fourth proportional to 346,507.40, 519,323.70 and 252,903.80 is: 379,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,507.40 : 519,323.70 = 252,903.80 : x
  2. Step 2: Convert to fraction form
    346,507.40/519,323.70 = 252,903.80/x
  3. Step 3: Cross multiply
    346,507.40x = 519,323.70 × 252,903.80
  4. Step 4: Simplify right side
    346,507.40x = 131,338,937,160.06
  5. Step 5: Solve for x
    x = 131,338,937,160.06/346,507.40
  6. Step 6: Final answer
    x = 379,036.46

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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.