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Finding the Fourth Proportional to 364,901.12, 503,848.32 and 279,883.52

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Solution

The fourth proportional to 364,901.12, 503,848.32 and 279,883.52 is: 386,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,901.12 : 503,848.32 = 279,883.52 : x
  2. Step 2: Convert to fraction form
    364,901.12/503,848.32 = 279,883.52/x
  3. Step 3: Cross multiply
    364,901.12x = 503,848.32 × 279,883.52
  4. Step 4: Simplify right side
    364,901.12x = 141,018,841,347.69
  5. Step 5: Solve for x
    x = 141,018,841,347.69/364,901.12
  6. Step 6: Final answer
    x = 386,457.68

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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.