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Finding the Fourth Proportional to 556,772.48, 768,348.08 and 302,123.67

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Solution

The fourth proportional to 556,772.48, 768,348.08 and 302,123.67 is: 416,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,772.48 : 768,348.08 = 302,123.67 : x
  2. Step 2: Convert to fraction form
    556,772.48/768,348.08 = 302,123.67/x
  3. Step 3: Cross multiply
    556,772.48x = 768,348.08 × 302,123.67
  4. Step 4: Simplify right side
    556,772.48x = 232,136,142,830.05
  5. Step 5: Solve for x
    x = 232,136,142,830.05/556,772.48
  6. Step 6: Final answer
    x = 416,931.78

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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.