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Finding the Fourth Proportional to 1,014,512, 1,400,070.57 and 561,803

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Solution

The fourth proportional to 1,014,512, 1,400,070.57 and 561,803 is: 775,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014,512 : 1,400,070.57 = 561,803 : x
  2. Step 2: Convert to fraction form
    1,014,512/1,400,070.57 = 561,803/x
  3. Step 3: Cross multiply
    1,014,512x = 1,400,070.57 × 561,803
  4. Step 4: Simplify right side
    1,014,512x = 786,563,846,437.71
  5. Step 5: Solve for x
    x = 786,563,846,437.71/1,014,512
  6. Step 6: Final answer
    x = 775,312.51

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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.