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Finding the Fourth Proportional to 563,256.57, 777,264.33 and 321,529.53

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Solution

The fourth proportional to 563,256.57, 777,264.33 and 321,529.53 is: 443,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,256.57 : 777,264.33 = 321,529.53 : x
  2. Step 2: Convert to fraction form
    563,256.57/777,264.33 = 321,529.53/x
  3. Step 3: Cross multiply
    563,256.57x = 777,264.33 × 321,529.53
  4. Step 4: Simplify right side
    563,256.57x = 249,913,434,710.67
  5. Step 5: Solve for x
    x = 249,913,434,710.67/563,256.57
  6. Step 6: Final answer
    x = 443,693.78

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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.