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Finding the Fourth Proportional to 556,335.55, 767,743.48 and 301,686.67

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Solution

The fourth proportional to 556,335.55, 767,743.48 and 301,686.67 is: 416,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,335.55 : 767,743.48 = 301,686.67 : x
  2. Step 2: Convert to fraction form
    556,335.55/767,743.48 = 301,686.67/x
  3. Step 3: Cross multiply
    556,335.55x = 767,743.48 × 301,686.67
  4. Step 4: Simplify right side
    556,335.55x = 231,617,973,895.41
  5. Step 5: Solve for x
    x = 231,617,973,895.41/556,335.55
  6. Step 6: Final answer
    x = 416,327.83

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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.