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Finding the Fourth Proportional to 604,712.40, 834,509.36 and 346,583.76

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Solution

The fourth proportional to 604,712.40, 834,509.36 and 346,583.76 is: 478,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,712.40 : 834,509.36 = 346,583.76 : x
  2. Step 2: Convert to fraction form
    604,712.40/834,509.36 = 346,583.76/x
  3. Step 3: Cross multiply
    604,712.40x = 834,509.36 × 346,583.76
  4. Step 4: Simplify right side
    604,712.40x = 289,227,391,743.99
  5. Step 5: Solve for x
    x = 289,227,391,743.99/604,712.40
  6. Step 6: Final answer
    x = 478,289.17

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Double scale
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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.