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Finding the Fourth Proportional to 586,017.12, 808,704.08 and 317,745.12

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Solution

The fourth proportional to 586,017.12, 808,704.08 and 317,745.12 is: 438,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,017.12 : 808,704.08 = 317,745.12 : x
  2. Step 2: Convert to fraction form
    586,017.12/808,704.08 = 317,745.12/x
  3. Step 3: Cross multiply
    586,017.12x = 808,704.08 × 317,745.12
  4. Step 4: Simplify right side
    586,017.12x = 256,961,774,944.09
  5. Step 5: Solve for x
    x = 256,961,774,944.09/586,017.12
  6. Step 6: Final answer
    x = 438,488.51

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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.