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Finding the Fourth Proportional to 565,238.10, 779,717.14 and 358,127.58

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Solution

The fourth proportional to 565,238.10, 779,717.14 and 358,127.58 is: 494,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,238.10 : 779,717.14 = 358,127.58 : x
  2. Step 2: Convert to fraction form
    565,238.10/779,717.14 = 358,127.58/x
  3. Step 3: Cross multiply
    565,238.10x = 779,717.14 × 358,127.58
  4. Step 4: Simplify right side
    565,238.10x = 279,238,214,461.34
  5. Step 5: Solve for x
    x = 279,238,214,461.34/565,238.10
  6. Step 6: Final answer
    x = 494,018.74

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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.