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Finding the Fourth Proportional to 380,588.15, 570,783.81 and 180,510.46

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Solution

The fourth proportional to 380,588.15, 570,783.81 and 180,510.46 is: 270,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,588.15 : 570,783.81 = 180,510.46 : x
  2. Step 2: Convert to fraction form
    380,588.15/570,783.81 = 180,510.46/x
  3. Step 3: Cross multiply
    380,588.15x = 570,783.81 × 180,510.46
  4. Step 4: Simplify right side
    380,588.15x = 103,032,447,353.61
  5. Step 5: Solve for x
    x = 103,032,447,353.61/380,588.15
  6. Step 6: Final answer
    x = 270,719.01

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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.