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Finding the Fourth Proportional to 556,905.09, 768,528.90 and 302,256.30

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Solution

The fourth proportional to 556,905.09, 768,528.90 and 302,256.30 is: 417,113.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,905.09 : 768,528.90 = 302,256.30 : x
  2. Step 2: Convert to fraction form
    556,905.09/768,528.90 = 302,256.30/x
  3. Step 3: Cross multiply
    556,905.09x = 768,528.90 × 302,256.30
  4. Step 4: Simplify right side
    556,905.09x = 232,292,701,757.07
  5. Step 5: Solve for x
    x = 232,292,701,757.07/556,905.09
  6. Step 6: Final answer
    x = 417,113.63

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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.