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Finding the Fourth Proportional to 607,339.60, 910,426.20 and 472,328.80

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Solution

The fourth proportional to 607,339.60, 910,426.20 and 472,328.80 is: 708,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,339.60 : 910,426.20 = 472,328.80 : x
  2. Step 2: Convert to fraction form
    607,339.60/910,426.20 = 472,328.80/x
  3. Step 3: Cross multiply
    607,339.60x = 910,426.20 × 472,328.80
  4. Step 4: Simplify right side
    607,339.60x = 430,020,514,534.56
  5. Step 5: Solve for x
    x = 430,020,514,534.56/607,339.60
  6. Step 6: Final answer
    x = 708,039.64

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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.