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Finding the Fourth Proportional to 754,931, 1,041,812.07 and 415,406.54

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Solution

The fourth proportional to 754,931, 1,041,812.07 and 415,406.54 is: 573,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,931 : 1,041,812.07 = 415,406.54 : x
  2. Step 2: Convert to fraction form
    754,931/1,041,812.07 = 415,406.54/x
  3. Step 3: Cross multiply
    754,931x = 1,041,812.07 × 415,406.54
  4. Step 4: Simplify right side
    754,931x = 432,775,547,328.94
  5. Step 5: Solve for x
    x = 432,775,547,328.94/754,931
  6. Step 6: Final answer
    x = 573,265.04

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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.