Home / 326,623.30-489,808.59-126,917.40

Finding the Fourth Proportional to 326,623.30, 489,808.59 and 126,917.40

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Solution

The fourth proportional to 326,623.30, 489,808.59 and 126,917.40 is: 190,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,623.30 : 489,808.59 = 126,917.40 : x
  2. Step 2: Convert to fraction form
    326,623.30/489,808.59 = 126,917.40/x
  3. Step 3: Cross multiply
    326,623.30x = 489,808.59 × 126,917.40
  4. Step 4: Simplify right side
    326,623.30x = 62,165,232,740.47
  5. Step 5: Solve for x
    x = 62,165,232,740.47/326,623.30
  6. Step 6: Final answer
    x = 190,327.00

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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.