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Finding the Fourth Proportional to 548,225.40, 756,350.28 and 330,482.22

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Solution

The fourth proportional to 548,225.40, 756,350.28 and 330,482.22 is: 455,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,225.40 : 756,350.28 = 330,482.22 : x
  2. Step 2: Convert to fraction form
    548,225.40/756,350.28 = 330,482.22/x
  3. Step 3: Cross multiply
    548,225.40x = 756,350.28 × 330,482.22
  4. Step 4: Simplify right side
    548,225.40x = 249,960,316,795.71
  5. Step 5: Solve for x
    x = 249,960,316,795.71/548,225.40
  6. Step 6: Final answer
    x = 455,944.43

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.