Home / 911,042.48-1,257,392.58-529,290.74

Finding the Fourth Proportional to 911,042.48, 1,257,392.58 and 529,290.74

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Solution

The fourth proportional to 911,042.48, 1,257,392.58 and 529,290.74 is: 730,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,042.48 : 1,257,392.58 = 529,290.74 : x
  2. Step 2: Convert to fraction form
    911,042.48/1,257,392.58 = 529,290.74/x
  3. Step 3: Cross multiply
    911,042.48x = 1,257,392.58 × 529,290.74
  4. Step 4: Simplify right side
    911,042.48x = 665,526,249,138.71
  5. Step 5: Solve for x
    x = 665,526,249,138.71/911,042.48
  6. Step 6: Final answer
    x = 730,510.67

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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.