Home / 423,100.99-583,965.32-287,178.74

Finding the Fourth Proportional to 423,100.99, 583,965.32 and 287,178.74

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Solution

The fourth proportional to 423,100.99, 583,965.32 and 287,178.74 is: 396,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,100.99 : 583,965.32 = 287,178.74 : x
  2. Step 2: Convert to fraction form
    423,100.99/583,965.32 = 287,178.74/x
  3. Step 3: Cross multiply
    423,100.99x = 583,965.32 × 287,178.74
  4. Step 4: Simplify right side
    423,100.99x = 167,702,424,801.30
  5. Step 5: Solve for x
    x = 167,702,424,801.30/423,100.99
  6. Step 6: Final answer
    x = 396,365.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.