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Finding the Fourth Proportional to 666,547.60, 921,605.16 and 582,566.80

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Solution

The fourth proportional to 666,547.60, 921,605.16 and 582,566.80 is: 805,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,547.60 : 921,605.16 = 582,566.80 : x
  2. Step 2: Convert to fraction form
    666,547.60/921,605.16 = 582,566.80/x
  3. Step 3: Cross multiply
    666,547.60x = 921,605.16 × 582,566.80
  4. Step 4: Simplify right side
    666,547.60x = 536,896,568,924.69
  5. Step 5: Solve for x
    x = 536,896,568,924.69/666,547.60
  6. Step 6: Final answer
    x = 805,488.71

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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.