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Finding the Fourth Proportional to 612,487.04, 918,730.64 and 191,795.76

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Solution

The fourth proportional to 612,487.04, 918,730.64 and 191,795.76 is: 287,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,487.04 : 918,730.64 = 191,795.76 : x
  2. Step 2: Convert to fraction form
    612,487.04/918,730.64 = 191,795.76/x
  3. Step 3: Cross multiply
    612,487.04x = 918,730.64 × 191,795.76
  4. Step 4: Simplify right side
    612,487.04x = 176,208,641,334.09
  5. Step 5: Solve for x
    x = 176,208,641,334.09/612,487.04
  6. Step 6: Final answer
    x = 287,693.67

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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.