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Finding the Fourth Proportional to 487,570.20, 730,043.10 and 487,570.20

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Solution

The fourth proportional to 487,570.20, 730,043.10 and 487,570.20 is: 730,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,570.20 : 730,043.10 = 487,570.20 : x
  2. Step 2: Convert to fraction form
    487,570.20/730,043.10 = 487,570.20/x
  3. Step 3: Cross multiply
    487,570.20x = 730,043.10 × 487,570.20
  4. Step 4: Simplify right side
    487,570.20x = 355,947,260,275.62
  5. Step 5: Solve for x
    x = 355,947,260,275.62/487,570.20
  6. Step 6: Final answer
    x = 730,043.10

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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.