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Finding the Fourth Proportional to 702,142.24, 968,952.30 and 379,851.40

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Solution

The fourth proportional to 702,142.24, 968,952.30 and 379,851.40 is: 524,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,142.24 : 968,952.30 = 379,851.40 : x
  2. Step 2: Convert to fraction form
    702,142.24/968,952.30 = 379,851.40/x
  3. Step 3: Cross multiply
    702,142.24x = 968,952.30 × 379,851.40
  4. Step 4: Simplify right side
    702,142.24x = 368,057,887,688.22
  5. Step 5: Solve for x
    x = 368,057,887,688.22/702,142.24
  6. Step 6: Final answer
    x = 524,192.77

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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.