Home / 526,845.84-727,047.24-285,128.40

Finding the Fourth Proportional to 526,845.84, 727,047.24 and 285,128.40

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Solution

The fourth proportional to 526,845.84, 727,047.24 and 285,128.40 is: 393,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,845.84 : 727,047.24 = 285,128.40 : x
  2. Step 2: Convert to fraction form
    526,845.84/727,047.24 = 285,128.40/x
  3. Step 3: Cross multiply
    526,845.84x = 727,047.24 × 285,128.40
  4. Step 4: Simplify right side
    526,845.84x = 207,301,816,265.62
  5. Step 5: Solve for x
    x = 207,301,816,265.62/526,845.84
  6. Step 6: Final answer
    x = 393,477.18

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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.