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Finding the Fourth Proportional to 576,966.32, 865,547.90 and 257,234.21

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Solution

The fourth proportional to 576,966.32, 865,547.90 and 257,234.21 is: 385,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,966.32 : 865,547.90 = 257,234.21 : x
  2. Step 2: Convert to fraction form
    576,966.32/865,547.90 = 257,234.21/x
  3. Step 3: Cross multiply
    576,966.32x = 865,547.90 × 257,234.21
  4. Step 4: Simplify right side
    576,966.32x = 222,648,533,080.61
  5. Step 5: Solve for x
    x = 222,648,533,080.61/576,966.32
  6. Step 6: Final answer
    x = 385,895.20

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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.