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Finding the Fourth Proportional to 531,451.50, 734,715.27 and 509,144.10

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Solution

The fourth proportional to 531,451.50, 734,715.27 and 509,144.10 is: 703,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,451.50 : 734,715.27 = 509,144.10 : x
  2. Step 2: Convert to fraction form
    531,451.50/734,715.27 = 509,144.10/x
  3. Step 3: Cross multiply
    531,451.50x = 734,715.27 × 509,144.10
  4. Step 4: Simplify right side
    531,451.50x = 374,075,944,900.41
  5. Step 5: Solve for x
    x = 374,075,944,900.41/531,451.50
  6. Step 6: Final answer
    x = 703,875.98

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Double scale
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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.