Home / 385,621.60-578,432.40-175,669.60

Finding the Fourth Proportional to 385,621.60, 578,432.40 and 175,669.60

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Solution

The fourth proportional to 385,621.60, 578,432.40 and 175,669.60 is: 263,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,621.60 : 578,432.40 = 175,669.60 : x
  2. Step 2: Convert to fraction form
    385,621.60/578,432.40 = 175,669.60/x
  3. Step 3: Cross multiply
    385,621.60x = 578,432.40 × 175,669.60
  4. Step 4: Simplify right side
    385,621.60x = 101,612,988,335.04
  5. Step 5: Solve for x
    x = 101,612,988,335.04/385,621.60
  6. Step 6: Final answer
    x = 263,504.40

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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.