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Finding the Fourth Proportional to 584,709.72, 806,899.40 and 316,437.72

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Solution

The fourth proportional to 584,709.72, 806,899.40 and 316,437.72 is: 436,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,709.72 : 806,899.40 = 316,437.72 : x
  2. Step 2: Convert to fraction form
    584,709.72/806,899.40 = 316,437.72/x
  3. Step 3: Cross multiply
    584,709.72x = 806,899.40 × 316,437.72
  4. Step 4: Simplify right side
    584,709.72x = 255,333,406,405.37
  5. Step 5: Solve for x
    x = 255,333,406,405.37/584,709.72
  6. Step 6: Final answer
    x = 436,684.05

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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.