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Finding the Fourth Proportional to 637,193.83, 879,320.71 and 350,707.76

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Solution

The fourth proportional to 637,193.83, 879,320.71 and 350,707.76 is: 483,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,193.83 : 879,320.71 = 350,707.76 : x
  2. Step 2: Convert to fraction form
    637,193.83/879,320.71 = 350,707.76/x
  3. Step 3: Cross multiply
    637,193.83x = 879,320.71 × 350,707.76
  4. Step 4: Simplify right side
    637,193.83x = 308,384,596,525.71
  5. Step 5: Solve for x
    x = 308,384,596,525.71/637,193.83
  6. Step 6: Final answer
    x = 483,972.98

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.