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Finding the Fourth Proportional to 477,554.60, 659,011.74 and 259,756.40

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Solution

The fourth proportional to 477,554.60, 659,011.74 and 259,756.40 is: 358,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,554.60 : 659,011.74 = 259,756.40 : x
  2. Step 2: Convert to fraction form
    477,554.60/659,011.74 = 259,756.40/x
  3. Step 3: Cross multiply
    477,554.60x = 659,011.74 × 259,756.40
  4. Step 4: Simplify right side
    477,554.60x = 171,182,517,140.14
  5. Step 5: Solve for x
    x = 171,182,517,140.14/477,554.60
  6. Step 6: Final answer
    x = 358,456.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.