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Finding the Fourth Proportional to 315,567.60, 473,351.40 and 191,151.60

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Solution

The fourth proportional to 315,567.60, 473,351.40 and 191,151.60 is: 286,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,567.60 : 473,351.40 = 191,151.60 : x
  2. Step 2: Convert to fraction form
    315,567.60/473,351.40 = 191,151.60/x
  3. Step 3: Cross multiply
    315,567.60x = 473,351.40 × 191,151.60
  4. Step 4: Simplify right side
    315,567.60x = 90,481,877,472.24
  5. Step 5: Solve for x
    x = 90,481,877,472.24/315,567.60
  6. Step 6: Final answer
    x = 286,727.40

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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.