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Finding the Fourth Proportional to 769,911.84, 1,062,501.84 and 430,394.40

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Solution

The fourth proportional to 769,911.84, 1,062,501.84 and 430,394.40 is: 593,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,911.84 : 1,062,501.84 = 430,394.40 : x
  2. Step 2: Convert to fraction form
    769,911.84/1,062,501.84 = 430,394.40/x
  3. Step 3: Cross multiply
    769,911.84x = 1,062,501.84 × 430,394.40
  4. Step 4: Simplify right side
    769,911.84x = 457,294,841,925.70
  5. Step 5: Solve for x
    x = 457,294,841,925.70/769,911.84
  6. Step 6: Final answer
    x = 593,957.41

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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.