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Finding the Fourth Proportional to 582,987.90, 872,506.63 and 358,490.53

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Solution

The fourth proportional to 582,987.90, 872,506.63 and 358,490.53 is: 536,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,987.90 : 872,506.63 = 358,490.53 : x
  2. Step 2: Convert to fraction form
    582,987.90/872,506.63 = 358,490.53/x
  3. Step 3: Cross multiply
    582,987.90x = 872,506.63 × 358,490.53
  4. Step 4: Simplify right side
    582,987.90x = 312,785,364,217.21
  5. Step 5: Solve for x
    x = 312,785,364,217.21/582,987.90
  6. Step 6: Final answer
    x = 536,521.19

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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.