Home / 515,624.04-711,566.64-286,185.60

Finding the Fourth Proportional to 515,624.04, 711,566.64 and 286,185.60

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Solution

The fourth proportional to 515,624.04, 711,566.64 and 286,185.60 is: 394,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,624.04 : 711,566.64 = 286,185.60 : x
  2. Step 2: Convert to fraction form
    515,624.04/711,566.64 = 286,185.60/x
  3. Step 3: Cross multiply
    515,624.04x = 711,566.64 × 286,185.60
  4. Step 4: Simplify right side
    515,624.04x = 203,640,125,808.38
  5. Step 5: Solve for x
    x = 203,640,125,808.38/515,624.04
  6. Step 6: Final answer
    x = 394,939.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.