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Finding the Fourth Proportional to 310,939.56, 466,421.40 and 97,852.80

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Solution

The fourth proportional to 310,939.56, 466,421.40 and 97,852.80 is: 146,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,939.56 : 466,421.40 = 97,852.80 : x
  2. Step 2: Convert to fraction form
    310,939.56/466,421.40 = 97,852.80/x
  3. Step 3: Cross multiply
    310,939.56x = 466,421.40 × 97,852.80
  4. Step 4: Simplify right side
    310,939.56x = 45,640,639,969.92
  5. Step 5: Solve for x
    x = 45,640,639,969.92/310,939.56
  6. Step 6: Final answer
    x = 146,783.00

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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.