Home / 926,810.60-1,390,215.90-328,447.40

Finding the Fourth Proportional to 926,810.60, 1,390,215.90 and 328,447.40

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Solution

The fourth proportional to 926,810.60, 1,390,215.90 and 328,447.40 is: 492,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,810.60 : 1,390,215.90 = 328,447.40 : x
  2. Step 2: Convert to fraction form
    926,810.60/1,390,215.90 = 328,447.40/x
  3. Step 3: Cross multiply
    926,810.60x = 1,390,215.90 × 328,447.40
  4. Step 4: Simplify right side
    926,810.60x = 456,612,797,793.66
  5. Step 5: Solve for x
    x = 456,612,797,793.66/926,810.60
  6. Step 6: Final answer
    x = 492,671.10

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Similar ratio
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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.