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Finding the Fourth Proportional to 633,055.60, 873,638.76 and 346,577.74

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Solution

The fourth proportional to 633,055.60, 873,638.76 and 346,577.74 is: 478,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,055.60 : 873,638.76 = 346,577.74 : x
  2. Step 2: Convert to fraction form
    633,055.60/873,638.76 = 346,577.74/x
  3. Step 3: Cross multiply
    633,055.60x = 873,638.76 × 346,577.74
  4. Step 4: Simplify right side
    633,055.60x = 302,783,746,132.77
  5. Step 5: Solve for x
    x = 302,783,746,132.77/633,055.60
  6. Step 6: Final answer
    x = 478,289.34

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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.