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Finding the Fourth Proportional to 560,453.47, 773,442.88 and 318,770.87

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Solution

The fourth proportional to 560,453.47, 773,442.88 and 318,770.87 is: 439,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,453.47 : 773,442.88 = 318,770.87 : x
  2. Step 2: Convert to fraction form
    560,453.47/773,442.88 = 318,770.87/x
  3. Step 3: Cross multiply
    560,453.47x = 773,442.88 × 318,770.87
  4. Step 4: Simplify right side
    560,453.47x = 246,551,055,088.76
  5. Step 5: Solve for x
    x = 246,551,055,088.76/560,453.47
  6. Step 6: Final answer
    x = 439,913.52

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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.