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Finding the Fourth Proportional to 633,117.60, 873,702.40 and 346,637.76

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Solution

The fourth proportional to 633,117.60, 873,702.40 and 346,637.76 is: 478,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,117.60 : 873,702.40 = 346,637.76 : x
  2. Step 2: Convert to fraction form
    633,117.60/873,702.40 = 346,637.76/x
  3. Step 3: Cross multiply
    633,117.60x = 873,702.40 × 346,637.76
  4. Step 4: Simplify right side
    633,117.60x = 302,858,242,842.62
  5. Step 5: Solve for x
    x = 302,858,242,842.62/633,117.60
  6. Step 6: Final answer
    x = 478,360.17

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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.