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Finding the Fourth Proportional to 614,903.10, 922,354.65 and 509,927.10

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Solution

The fourth proportional to 614,903.10, 922,354.65 and 509,927.10 is: 764,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,903.10 : 922,354.65 = 509,927.10 : x
  2. Step 2: Convert to fraction form
    614,903.10/922,354.65 = 509,927.10/x
  3. Step 3: Cross multiply
    614,903.10x = 922,354.65 × 509,927.10
  4. Step 4: Simplify right side
    614,903.10x = 470,333,631,846.02
  5. Step 5: Solve for x
    x = 470,333,631,846.02/614,903.10
  6. Step 6: Final answer
    x = 764,890.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.