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Finding the Fourth Proportional to 548,515.60, 824,155.80 and 348,931.60

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Solution

The fourth proportional to 548,515.60, 824,155.80 and 348,931.60 is: 524,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,515.60 : 824,155.80 = 348,931.60 : x
  2. Step 2: Convert to fraction form
    548,515.60/824,155.80 = 348,931.60/x
  3. Step 3: Cross multiply
    548,515.60x = 824,155.80 × 348,931.60
  4. Step 4: Simplify right side
    548,515.60x = 287,574,001,943.28
  5. Step 5: Solve for x
    x = 287,574,001,943.28/548,515.60
  6. Step 6: Final answer
    x = 524,276.80

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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.