Home / 319,569.40-479,353.49-186,356.24

Finding the Fourth Proportional to 319,569.40, 479,353.49 and 186,356.24

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Solution

The fourth proportional to 319,569.40, 479,353.49 and 186,356.24 is: 279,534.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,569.40 : 479,353.49 = 186,356.24 : x
  2. Step 2: Convert to fraction form
    319,569.40/479,353.49 = 186,356.24/x
  3. Step 3: Cross multiply
    319,569.40x = 479,353.49 × 186,356.24
  4. Step 4: Simplify right side
    319,569.40x = 89,330,516,939.76
  5. Step 5: Solve for x
    x = 89,330,516,939.76/319,569.40
  6. Step 6: Final answer
    x = 279,534.01

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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.