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Finding the Fourth Proportional to 573,438.08, 791,364.84 and 315,334.76

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Solution

The fourth proportional to 573,438.08, 791,364.84 and 315,334.76 is: 435,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,438.08 : 791,364.84 = 315,334.76 : x
  2. Step 2: Convert to fraction form
    573,438.08/791,364.84 = 315,334.76/x
  3. Step 3: Cross multiply
    573,438.08x = 791,364.84 × 315,334.76
  4. Step 4: Simplify right side
    573,438.08x = 249,544,841,893.84
  5. Step 5: Solve for x
    x = 249,544,841,893.84/573,438.08
  6. Step 6: Final answer
    x = 435,173.13

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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.