Home / 529,853.04-731,200.59-288,138.24

Finding the Fourth Proportional to 529,853.04, 731,200.59 and 288,138.24

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Solution

The fourth proportional to 529,853.04, 731,200.59 and 288,138.24 is: 397,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,853.04 : 731,200.59 = 288,138.24 : x
  2. Step 2: Convert to fraction form
    529,853.04/731,200.59 = 288,138.24/x
  3. Step 3: Cross multiply
    529,853.04x = 731,200.59 × 288,138.24
  4. Step 4: Simplify right side
    529,853.04x = 210,686,851,089.56
  5. Step 5: Solve for x
    x = 210,686,851,089.56/529,853.04
  6. Step 6: Final answer
    x = 397,632.62

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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.