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Finding the Fourth Proportional to 664,341.40, 993,887.70 and 576,569.80

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Solution

The fourth proportional to 664,341.40, 993,887.70 and 576,569.80 is: 862,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,341.40 : 993,887.70 = 576,569.80 : x
  2. Step 2: Convert to fraction form
    664,341.40/993,887.70 = 576,569.80/x
  3. Step 3: Cross multiply
    664,341.40x = 993,887.70 × 576,569.80
  4. Step 4: Simplify right side
    664,341.40x = 573,045,632,411.46
  5. Step 5: Solve for x
    x = 573,045,632,411.46/664,341.40
  6. Step 6: Final answer
    x = 862,577.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.