Home / 936,336.60-1,402,128.90-515,136.60

Finding the Fourth Proportional to 936,336.60, 1,402,128.90 and 515,136.60

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Solution

The fourth proportional to 936,336.60, 1,402,128.90 and 515,136.60 is: 771,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,336.60 : 1,402,128.90 = 515,136.60 : x
  2. Step 2: Convert to fraction form
    936,336.60/1,402,128.90 = 515,136.60/x
  3. Step 3: Cross multiply
    936,336.60x = 1,402,128.90 × 515,136.60
  4. Step 4: Simplify right side
    936,336.60x = 722,287,914,307.74
  5. Step 5: Solve for x
    x = 722,287,914,307.74/936,336.60
  6. Step 6: Final answer
    x = 771,397.72

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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.