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Finding the Fourth Proportional to 395,220.30, 592,830.45 and 181,987.80

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Solution

The fourth proportional to 395,220.30, 592,830.45 and 181,987.80 is: 272,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,220.30 : 592,830.45 = 181,987.80 : x
  2. Step 2: Convert to fraction form
    395,220.30/592,830.45 = 181,987.80/x
  3. Step 3: Cross multiply
    395,220.30x = 592,830.45 × 181,987.80
  4. Step 4: Simplify right side
    395,220.30x = 107,887,909,368.51
  5. Step 5: Solve for x
    x = 107,887,909,368.51/395,220.30
  6. Step 6: Final answer
    x = 272,981.70

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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.