Home / 877,513.55-1,210,968.77-495,564.93

Finding the Fourth Proportional to 877,513.55, 1,210,968.77 and 495,564.93

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Solution

The fourth proportional to 877,513.55, 1,210,968.77 and 495,564.93 is: 683,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,513.55 : 1,210,968.77 = 495,564.93 : x
  2. Step 2: Convert to fraction form
    877,513.55/1,210,968.77 = 495,564.93/x
  3. Step 3: Cross multiply
    877,513.55x = 1,210,968.77 × 495,564.93
  4. Step 4: Simplify right side
    877,513.55x = 600,113,651,259.41
  5. Step 5: Solve for x
    x = 600,113,651,259.41/877,513.55
  6. Step 6: Final answer
    x = 683,879.64

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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.