Home / 828,159.69-1,142,853.50-465,585.17

Finding the Fourth Proportional to 828,159.69, 1,142,853.50 and 465,585.17

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Solution

The fourth proportional to 828,159.69, 1,142,853.50 and 465,585.17 is: 642,503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,159.69 : 1,142,853.50 = 465,585.17 : x
  2. Step 2: Convert to fraction form
    828,159.69/1,142,853.50 = 465,585.17/x
  3. Step 3: Cross multiply
    828,159.69x = 1,142,853.50 × 465,585.17
  4. Step 4: Simplify right side
    828,159.69x = 532,095,636,532.29
  5. Step 5: Solve for x
    x = 532,095,636,532.29/828,159.69
  6. Step 6: Final answer
    x = 642,503.66

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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.