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Finding the Fourth Proportional to 584,531, 806,652.78 and 316,259

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Solution

The fourth proportional to 584,531, 806,652.78 and 316,259 is: 436,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,531 : 806,652.78 = 316,259 : x
  2. Step 2: Convert to fraction form
    584,531/806,652.78 = 316,259/x
  3. Step 3: Cross multiply
    584,531x = 806,652.78 × 316,259
  4. Step 4: Simplify right side
    584,531x = 255,111,201,550.02
  5. Step 5: Solve for x
    x = 255,111,201,550.02/584,531
  6. Step 6: Final answer
    x = 436,437.42

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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.