Home / 828,180.16-1,142,881.76-465,605.68

Finding the Fourth Proportional to 828,180.16, 1,142,881.76 and 465,605.68

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Solution

The fourth proportional to 828,180.16, 1,142,881.76 and 465,605.68 is: 642,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,180.16 : 1,142,881.76 = 465,605.68 : x
  2. Step 2: Convert to fraction form
    828,180.16/1,142,881.76 = 465,605.68/x
  3. Step 3: Cross multiply
    828,180.16x = 1,142,881.76 × 465,605.68
  4. Step 4: Simplify right side
    828,180.16x = 532,132,239,024.40
  5. Step 5: Solve for x
    x = 532,132,239,024.40/828,180.16
  6. Step 6: Final answer
    x = 642,531.98

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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.