Home / 530,127.64-731,577.88-288,410.16

Finding the Fourth Proportional to 530,127.64, 731,577.88 and 288,410.16

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Solution

The fourth proportional to 530,127.64, 731,577.88 and 288,410.16 is: 398,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,127.64 : 731,577.88 = 288,410.16 : x
  2. Step 2: Convert to fraction form
    530,127.64/731,577.88 = 288,410.16/x
  3. Step 3: Cross multiply
    530,127.64x = 731,577.88 × 288,410.16
  4. Step 4: Simplify right side
    530,127.64x = 210,994,493,423.26
  5. Step 5: Solve for x
    x = 210,994,493,423.26/530,127.64
  6. Step 6: Final answer
    x = 398,006.97

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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.