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Finding the Fourth Proportional to 622,673.70, 934,010.55 and 561,656.40

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Solution

The fourth proportional to 622,673.70, 934,010.55 and 561,656.40 is: 842,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,673.70 : 934,010.55 = 561,656.40 : x
  2. Step 2: Convert to fraction form
    622,673.70/934,010.55 = 561,656.40/x
  3. Step 3: Cross multiply
    622,673.70x = 934,010.55 × 561,656.40
  4. Step 4: Simplify right side
    622,673.70x = 524,593,003,075.02
  5. Step 5: Solve for x
    x = 524,593,003,075.02/622,673.70
  6. Step 6: Final answer
    x = 842,484.60

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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.