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Finding the Fourth Proportional to 788,807.20, 1,183,210.80 and 473,879.20

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Solution

The fourth proportional to 788,807.20, 1,183,210.80 and 473,879.20 is: 710,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,807.20 : 1,183,210.80 = 473,879.20 : x
  2. Step 2: Convert to fraction form
    788,807.20/1,183,210.80 = 473,879.20/x
  3. Step 3: Cross multiply
    788,807.20x = 1,183,210.80 × 473,879.20
  4. Step 4: Simplify right side
    788,807.20x = 560,698,987,335.36
  5. Step 5: Solve for x
    x = 560,698,987,335.36/788,807.20
  6. Step 6: Final answer
    x = 710,818.80

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Half scale
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Double scale
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Similar ratio
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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.