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Finding the Fourth Proportional to 459,069.80, 688,604.70 and 249,117.80

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Solution

The fourth proportional to 459,069.80, 688,604.70 and 249,117.80 is: 373,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,069.80 : 688,604.70 = 249,117.80 : x
  2. Step 2: Convert to fraction form
    459,069.80/688,604.70 = 249,117.80/x
  3. Step 3: Cross multiply
    459,069.80x = 688,604.70 × 249,117.80
  4. Step 4: Simplify right side
    459,069.80x = 171,543,687,933.66
  5. Step 5: Solve for x
    x = 171,543,687,933.66/459,069.80
  6. Step 6: Final answer
    x = 373,676.70

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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.