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Finding the Fourth Proportional to 586,100.70, 879,151.05 and 349,710.30

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Solution

The fourth proportional to 586,100.70, 879,151.05 and 349,710.30 is: 524,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,100.70 : 879,151.05 = 349,710.30 : x
  2. Step 2: Convert to fraction form
    586,100.70/879,151.05 = 349,710.30/x
  3. Step 3: Cross multiply
    586,100.70x = 879,151.05 × 349,710.30
  4. Step 4: Simplify right side
    586,100.70x = 307,448,177,440.82
  5. Step 5: Solve for x
    x = 307,448,177,440.82/586,100.70
  6. Step 6: Final answer
    x = 524,565.45

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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.