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Finding the Fourth Proportional to 659,533.12, 910,291.68 and 373,065.28

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Solution

The fourth proportional to 659,533.12, 910,291.68 and 373,065.28 is: 514,907.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,533.12 : 910,291.68 = 373,065.28 : x
  2. Step 2: Convert to fraction form
    659,533.12/910,291.68 = 373,065.28/x
  3. Step 3: Cross multiply
    659,533.12x = 910,291.68 × 373,065.28
  4. Step 4: Simplify right side
    659,533.12x = 339,598,220,480.87
  5. Step 5: Solve for x
    x = 339,598,220,480.87/659,533.12
  6. Step 6: Final answer
    x = 514,907.00

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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.