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Finding the Fourth Proportional to 556,833.50, 768,430.77 and 302,184.74

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Solution

The fourth proportional to 556,833.50, 768,430.77 and 302,184.74 is: 417,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,833.50 : 768,430.77 = 302,184.74 : x
  2. Step 2: Convert to fraction form
    556,833.50/768,430.77 = 302,184.74/x
  3. Step 3: Cross multiply
    556,833.50x = 768,430.77 × 302,184.74
  4. Step 4: Simplify right side
    556,833.50x = 232,208,052,440.45
  5. Step 5: Solve for x
    x = 232,208,052,440.45/556,833.50
  6. Step 6: Final answer
    x = 417,015.23

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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.