Home / 529,290.84-730,412.39-287,577.23

Finding the Fourth Proportional to 529,290.84, 730,412.39 and 287,577.23

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Solution

The fourth proportional to 529,290.84, 730,412.39 and 287,577.23 is: 396,851.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,290.84 : 730,412.39 = 287,577.23 : x
  2. Step 2: Convert to fraction form
    529,290.84/730,412.39 = 287,577.23/x
  3. Step 3: Cross multiply
    529,290.84x = 730,412.39 × 287,577.23
  4. Step 4: Simplify right side
    529,290.84x = 210,049,966,783.93
  5. Step 5: Solve for x
    x = 210,049,966,783.93/529,290.84
  6. Step 6: Final answer
    x = 396,851.69

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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.