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Finding the Fourth Proportional to 310,897.80, 466,346.70 and 305,713.80

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Solution

The fourth proportional to 310,897.80, 466,346.70 and 305,713.80 is: 458,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,897.80 : 466,346.70 = 305,713.80 : x
  2. Step 2: Convert to fraction form
    310,897.80/466,346.70 = 305,713.80/x
  3. Step 3: Cross multiply
    310,897.80x = 466,346.70 × 305,713.80
  4. Step 4: Simplify right side
    310,897.80x = 142,568,621,774.46
  5. Step 5: Solve for x
    x = 142,568,621,774.46/310,897.80
  6. Step 6: Final answer
    x = 458,570.70

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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.