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Finding the Fourth Proportional to 669,353.65, 923,707.46 and 367,547.65

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Solution

The fourth proportional to 669,353.65, 923,707.46 and 367,547.65 is: 507,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,353.65 : 923,707.46 = 367,547.65 : x
  2. Step 2: Convert to fraction form
    669,353.65/923,707.46 = 367,547.65/x
  3. Step 3: Cross multiply
    669,353.65x = 923,707.46 × 367,547.65
  4. Step 4: Simplify right side
    669,353.65x = 339,506,504,820.07
  5. Step 5: Solve for x
    x = 339,506,504,820.07/669,353.65
  6. Step 6: Final answer
    x = 507,215.44

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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.