Home / 459,111.80-688,667.70-385,628.60

Finding the Fourth Proportional to 459,111.80, 688,667.70 and 385,628.60

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Solution

The fourth proportional to 459,111.80, 688,667.70 and 385,628.60 is: 578,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,111.80 : 688,667.70 = 385,628.60 : x
  2. Step 2: Convert to fraction form
    459,111.80/688,667.70 = 385,628.60/x
  3. Step 3: Cross multiply
    459,111.80x = 688,667.70 × 385,628.60
  4. Step 4: Simplify right side
    459,111.80x = 265,569,961,016.22
  5. Step 5: Solve for x
    x = 265,569,961,016.22/459,111.80
  6. Step 6: Final answer
    x = 578,442.90

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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.