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Finding the Fourth Proportional to 709,527.67, 979,171.01 and 403,596.17

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Solution

The fourth proportional to 709,527.67, 979,171.01 and 403,596.17 is: 556,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,527.67 : 979,171.01 = 403,596.17 : x
  2. Step 2: Convert to fraction form
    709,527.67/979,171.01 = 403,596.17/x
  3. Step 3: Cross multiply
    709,527.67x = 979,171.01 × 403,596.17
  4. Step 4: Simplify right side
    709,527.67x = 395,189,671,354.46
  5. Step 5: Solve for x
    x = 395,189,671,354.46/709,527.67
  6. Step 6: Final answer
    x = 556,975.70

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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.