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Finding the Fourth Proportional to 1,044,784.80, 1,567,695.60 and 413,719.20

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Solution

The fourth proportional to 1,044,784.80, 1,567,695.60 and 413,719.20 is: 620,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044,784.80 : 1,567,695.60 = 413,719.20 : x
  2. Step 2: Convert to fraction form
    1,044,784.80/1,567,695.60 = 413,719.20/x
  3. Step 3: Cross multiply
    1,044,784.80x = 1,567,695.60 × 413,719.20
  4. Step 4: Simplify right side
    1,044,784.80x = 648,585,769,475.52
  5. Step 5: Solve for x
    x = 648,585,769,475.52/1,044,784.80
  6. Step 6: Final answer
    x = 620,784.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.