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Finding the Fourth Proportional to 604,986.10, 907,479.15 and 511,674.10

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Solution

The fourth proportional to 604,986.10, 907,479.15 and 511,674.10 is: 767,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,986.10 : 907,479.15 = 511,674.10 : x
  2. Step 2: Convert to fraction form
    604,986.10/907,479.15 = 511,674.10/x
  3. Step 3: Cross multiply
    604,986.10x = 907,479.15 × 511,674.10
  4. Step 4: Simplify right side
    604,986.10x = 464,333,577,345.02
  5. Step 5: Solve for x
    x = 464,333,577,345.02/604,986.10
  6. Step 6: Final answer
    x = 767,511.15

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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.