Home / 529,111.06-730,178.78-287,398.35

Finding the Fourth Proportional to 529,111.06, 730,178.78 and 287,398.35

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Solution

The fourth proportional to 529,111.06, 730,178.78 and 287,398.35 is: 396,612.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,111.06 : 730,178.78 = 287,398.35 : x
  2. Step 2: Convert to fraction form
    529,111.06/730,178.78 = 287,398.35/x
  3. Step 3: Cross multiply
    529,111.06x = 730,178.78 × 287,398.35
  4. Step 4: Simplify right side
    529,111.06x = 209,852,175,140.02
  5. Step 5: Solve for x
    x = 209,852,175,140.02/529,111.06
  6. Step 6: Final answer
    x = 396,612.72

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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.