Home / 545,905.80-818,567.10-190,931.40

Finding the Fourth Proportional to 545,905.80, 818,567.10 and 190,931.40

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Solution

The fourth proportional to 545,905.80, 818,567.10 and 190,931.40 is: 286,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,905.80 : 818,567.10 = 190,931.40 : x
  2. Step 2: Convert to fraction form
    545,905.80/818,567.10 = 190,931.40/x
  3. Step 3: Cross multiply
    545,905.80x = 818,567.10 × 190,931.40
  4. Step 4: Simplify right side
    545,905.80x = 156,290,162,396.94
  5. Step 5: Solve for x
    x = 156,290,162,396.94/545,905.80
  6. Step 6: Final answer
    x = 286,295.11

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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.