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Finding the Fourth Proportional to 556,870.72, 768,475.20 and 302,222.08

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Solution

The fourth proportional to 556,870.72, 768,475.20 and 302,222.08 is: 417,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,870.72 : 768,475.20 = 302,222.08 : x
  2. Step 2: Convert to fraction form
    556,870.72/768,475.20 = 302,222.08/x
  3. Step 3: Cross multiply
    556,870.72x = 768,475.20 × 302,222.08
  4. Step 4: Simplify right side
    556,870.72x = 232,250,173,372.42
  5. Step 5: Solve for x
    x = 232,250,173,372.42/556,870.72
  6. Step 6: Final answer
    x = 417,063.00

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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.