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Finding the Fourth Proportional to 478,833.84, 716,133.02 and 425,897.51

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Solution

The fourth proportional to 478,833.84, 716,133.02 and 425,897.51 is: 636,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,833.84 : 716,133.02 = 425,897.51 : x
  2. Step 2: Convert to fraction form
    478,833.84/716,133.02 = 425,897.51/x
  3. Step 3: Cross multiply
    478,833.84x = 716,133.02 × 425,897.51
  4. Step 4: Simplify right side
    478,833.84x = 304,999,264,336.63
  5. Step 5: Solve for x
    x = 304,999,264,336.63/478,833.84
  6. Step 6: Final answer
    x = 636,962.63

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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.