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Finding the Fourth Proportional to 348,393.63, 522,678.19 and 99,075.63

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Solution

The fourth proportional to 348,393.63, 522,678.19 and 99,075.63 is: 148,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,393.63 : 522,678.19 = 99,075.63 : x
  2. Step 2: Convert to fraction form
    348,393.63/522,678.19 = 99,075.63/x
  3. Step 3: Cross multiply
    348,393.63x = 522,678.19 × 99,075.63
  4. Step 4: Simplify right side
    348,393.63x = 51,784,670,961.51
  5. Step 5: Solve for x
    x = 51,784,670,961.51/348,393.63
  6. Step 6: Final answer
    x = 148,638.40

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1.5x scale

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.