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Finding the Fourth Proportional to 493,746.40, 740,619.60 and 462,642.40

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Solution

The fourth proportional to 493,746.40, 740,619.60 and 462,642.40 is: 693,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,746.40 : 740,619.60 = 462,642.40 : x
  2. Step 2: Convert to fraction form
    493,746.40/740,619.60 = 462,642.40/x
  3. Step 3: Cross multiply
    493,746.40x = 740,619.60 × 462,642.40
  4. Step 4: Simplify right side
    493,746.40x = 342,642,029,231.04
  5. Step 5: Solve for x
    x = 342,642,029,231.04/493,746.40
  6. Step 6: Final answer
    x = 693,963.60

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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.