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Finding the Fourth Proportional to 700,123.92, 965,883.36 and 519,280.80

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Solution

The fourth proportional to 700,123.92, 965,883.36 and 519,280.80 is: 716,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,123.92 : 965,883.36 = 519,280.80 : x
  2. Step 2: Convert to fraction form
    700,123.92/965,883.36 = 519,280.80/x
  3. Step 3: Cross multiply
    700,123.92x = 965,883.36 × 519,280.80
  4. Step 4: Simplify right side
    700,123.92x = 501,564,683,887.49
  5. Step 5: Solve for x
    x = 501,564,683,887.49/700,123.92
  6. Step 6: Final answer
    x = 716,394.15

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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.