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Finding the Fourth Proportional to 658,881.84, 909,256.77 and 357,075.84

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Solution

The fourth proportional to 658,881.84, 909,256.77 and 357,075.84 is: 492,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,881.84 : 909,256.77 = 357,075.84 : x
  2. Step 2: Convert to fraction form
    658,881.84/909,256.77 = 357,075.84/x
  3. Step 3: Cross multiply
    658,881.84x = 909,256.77 × 357,075.84
  4. Step 4: Simplify right side
    658,881.84x = 324,673,624,923.44
  5. Step 5: Solve for x
    x = 324,673,624,923.44/658,881.84
  6. Step 6: Final answer
    x = 492,764.57

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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.