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Finding the Fourth Proportional to 654,561.76, 903,289.53 and 368,075.74

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Solution

The fourth proportional to 654,561.76, 903,289.53 and 368,075.74 is: 507,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,561.76 : 903,289.53 = 368,075.74 : x
  2. Step 2: Convert to fraction form
    654,561.76/903,289.53 = 368,075.74/x
  3. Step 3: Cross multiply
    654,561.76x = 903,289.53 × 368,075.74
  4. Step 4: Simplify right side
    654,561.76x = 332,478,962,189.00
  5. Step 5: Solve for x
    x = 332,478,962,189.00/654,561.76
  6. Step 6: Final answer
    x = 507,941.32

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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.