Home / 571,280.39-856,923.65-171,918.45

Finding the Fourth Proportional to 571,280.39, 856,923.65 and 171,918.45

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Solution

The fourth proportional to 571,280.39, 856,923.65 and 171,918.45 is: 257,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,280.39 : 856,923.65 = 171,918.45 : x
  2. Step 2: Convert to fraction form
    571,280.39/856,923.65 = 171,918.45/x
  3. Step 3: Cross multiply
    571,280.39x = 856,923.65 × 171,918.45
  4. Step 4: Simplify right side
    571,280.39x = 147,320,986,428.49
  5. Step 5: Solve for x
    x = 147,320,986,428.49/571,280.39
  6. Step 6: Final answer
    x = 257,878.60

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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.