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Finding the Fourth Proportional to 378,031.60, 567,047.40 and 354,703.60

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Solution

The fourth proportional to 378,031.60, 567,047.40 and 354,703.60 is: 532,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,031.60 : 567,047.40 = 354,703.60 : x
  2. Step 2: Convert to fraction form
    378,031.60/567,047.40 = 354,703.60/x
  3. Step 3: Cross multiply
    378,031.60x = 567,047.40 × 354,703.60
  4. Step 4: Simplify right side
    378,031.60x = 201,133,754,150.64
  5. Step 5: Solve for x
    x = 201,133,754,150.64/378,031.60
  6. Step 6: Final answer
    x = 532,055.40

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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.