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Finding the Fourth Proportional to 582,314.16, 803,611.28 and 317,117.21

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Solution

The fourth proportional to 582,314.16, 803,611.28 and 317,117.21 is: 437,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,314.16 : 803,611.28 = 317,117.21 : x
  2. Step 2: Convert to fraction form
    582,314.16/803,611.28 = 317,117.21/x
  3. Step 3: Cross multiply
    582,314.16x = 803,611.28 × 317,117.21
  4. Step 4: Simplify right side
    582,314.16x = 254,838,967,461.57
  5. Step 5: Solve for x
    x = 254,838,967,461.57/582,314.16
  6. Step 6: Final answer
    x = 437,631.41

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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.