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Finding the Fourth Proportional to 570,595.56, 787,412.25 and 315,941.28

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Solution

The fourth proportional to 570,595.56, 787,412.25 and 315,941.28 is: 435,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,595.56 : 787,412.25 = 315,941.28 : x
  2. Step 2: Convert to fraction form
    570,595.56/787,412.25 = 315,941.28/x
  3. Step 3: Cross multiply
    570,595.56x = 787,412.25 × 315,941.28
  4. Step 4: Simplify right side
    570,595.56x = 248,776,034,152.68
  5. Step 5: Solve for x
    x = 248,776,034,152.68/570,595.56
  6. Step 6: Final answer
    x = 435,993.64

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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.