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Finding the Fourth Proportional to 661,746.36, 913,210.56 and 359,940.36

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Solution

The fourth proportional to 661,746.36, 913,210.56 and 359,940.36 is: 496,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,746.36 : 913,210.56 = 359,940.36 : x
  2. Step 2: Convert to fraction form
    661,746.36/913,210.56 = 359,940.36/x
  3. Step 3: Cross multiply
    661,746.36x = 913,210.56 × 359,940.36
  4. Step 4: Simplify right side
    661,746.36x = 328,701,337,722.20
  5. Step 5: Solve for x
    x = 328,701,337,722.20/661,746.36
  6. Step 6: Final answer
    x = 496,718.01

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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.