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Finding the Fourth Proportional to 653,130.80, 901,453.14 and 377,500.40

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Solution

The fourth proportional to 653,130.80, 901,453.14 and 377,500.40 is: 521,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,130.80 : 901,453.14 = 377,500.40 : x
  2. Step 2: Convert to fraction form
    653,130.80/901,453.14 = 377,500.40/x
  3. Step 3: Cross multiply
    653,130.80x = 901,453.14 × 377,500.40
  4. Step 4: Simplify right side
    653,130.80x = 340,298,920,931.26
  5. Step 5: Solve for x
    x = 340,298,920,931.26/653,130.80
  6. Step 6: Final answer
    x = 521,027.21

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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.