Home / 657,637.20-986,455.80-338,772.60

Finding the Fourth Proportional to 657,637.20, 986,455.80 and 338,772.60

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Solution

The fourth proportional to 657,637.20, 986,455.80 and 338,772.60 is: 508,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,637.20 : 986,455.80 = 338,772.60 : x
  2. Step 2: Convert to fraction form
    657,637.20/986,455.80 = 338,772.60/x
  3. Step 3: Cross multiply
    657,637.20x = 986,455.80 × 338,772.60
  4. Step 4: Simplify right side
    657,637.20x = 334,184,196,151.08
  5. Step 5: Solve for x
    x = 334,184,196,151.08/657,637.20
  6. Step 6: Final answer
    x = 508,158.90

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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.