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Finding the Fourth Proportional to 570,595.50, 787,412.16 and 315,941.22

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Solution

The fourth proportional to 570,595.50, 787,412.16 and 315,941.22 is: 435,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,595.50 : 787,412.16 = 315,941.22 : x
  2. Step 2: Convert to fraction form
    570,595.50/787,412.16 = 315,941.22/x
  3. Step 3: Cross multiply
    570,595.50x = 787,412.16 × 315,941.22
  4. Step 4: Simplify right side
    570,595.50x = 248,775,958,473.24
  5. Step 5: Solve for x
    x = 248,775,958,473.24/570,595.50
  6. Step 6: Final answer
    x = 435,993.55

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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.