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Finding the Fourth Proportional to 661,178.96, 912,866.36 and 507,944.24

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Solution

The fourth proportional to 661,178.96, 912,866.36 and 507,944.24 is: 701,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,178.96 : 912,866.36 = 507,944.24 : x
  2. Step 2: Convert to fraction form
    661,178.96/912,866.36 = 507,944.24/x
  3. Step 3: Cross multiply
    661,178.96x = 912,866.36 × 507,944.24
  4. Step 4: Simplify right side
    661,178.96x = 463,685,209,451.77
  5. Step 5: Solve for x
    x = 463,685,209,451.77/661,178.96
  6. Step 6: Final answer
    x = 701,300.61

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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.