Home / 459,084.80-688,627.20-385,601.60

Finding the Fourth Proportional to 459,084.80, 688,627.20 and 385,601.60

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Solution

The fourth proportional to 459,084.80, 688,627.20 and 385,601.60 is: 578,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,084.80 : 688,627.20 = 385,601.60 : x
  2. Step 2: Convert to fraction form
    459,084.80/688,627.20 = 385,601.60/x
  3. Step 3: Cross multiply
    459,084.80x = 688,627.20 × 385,601.60
  4. Step 4: Simplify right side
    459,084.80x = 265,535,750,123.52
  5. Step 5: Solve for x
    x = 265,535,750,123.52/459,084.80
  6. Step 6: Final answer
    x = 578,402.40

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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.