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Finding the Fourth Proportional to 493,363.60, 740,045.40 and 368,947.60

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Solution

The fourth proportional to 493,363.60, 740,045.40 and 368,947.60 is: 553,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,363.60 : 740,045.40 = 368,947.60 : x
  2. Step 2: Convert to fraction form
    493,363.60/740,045.40 = 368,947.60/x
  3. Step 3: Cross multiply
    493,363.60x = 740,045.40 × 368,947.60
  4. Step 4: Simplify right side
    493,363.60x = 273,037,974,221.04
  5. Step 5: Solve for x
    x = 273,037,974,221.04/493,363.60
  6. Step 6: Final answer
    x = 553,421.40

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Similar ratio
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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.