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Finding the Fourth Proportional to 415,547.40, 573,544.64 and 262,488.21

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Solution

The fourth proportional to 415,547.40, 573,544.64 and 262,488.21 is: 362,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,547.40 : 573,544.64 = 262,488.21 : x
  2. Step 2: Convert to fraction form
    415,547.40/573,544.64 = 262,488.21/x
  3. Step 3: Cross multiply
    415,547.40x = 573,544.64 × 262,488.21
  4. Step 4: Simplify right side
    415,547.40x = 150,548,705,908.69
  5. Step 5: Solve for x
    x = 150,548,705,908.69/415,547.40
  6. Step 6: Final answer
    x = 362,290.09

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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.