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Finding the Fourth Proportional to 923,966, 1,275,073.08 and 500,030

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Solution

The fourth proportional to 923,966, 1,275,073.08 and 500,030 is: 690,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,966 : 1,275,073.08 = 500,030 : x
  2. Step 2: Convert to fraction form
    923,966/1,275,073.08 = 500,030/x
  3. Step 3: Cross multiply
    923,966x = 1,275,073.08 × 500,030
  4. Step 4: Simplify right side
    923,966x = 637,574,792,192.40
  5. Step 5: Solve for x
    x = 637,574,792,192.40/923,966
  6. Step 6: Final answer
    x = 690,041.40

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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.