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Finding the Fourth Proportional to 423,489.51, 584,420.40 and 232,498.80

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Solution

The fourth proportional to 423,489.51, 584,420.40 and 232,498.80 is: 320,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,489.51 : 584,420.40 = 232,498.80 : x
  2. Step 2: Convert to fraction form
    423,489.51/584,420.40 = 232,498.80/x
  3. Step 3: Cross multiply
    423,489.51x = 584,420.40 × 232,498.80
  4. Step 4: Simplify right side
    423,489.51x = 135,877,041,695.52
  5. Step 5: Solve for x
    x = 135,877,041,695.52/423,489.51
  6. Step 6: Final answer
    x = 320,851.02

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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.