Home / 853,784.08-1,178,289.05-486,276.82

Finding the Fourth Proportional to 853,784.08, 1,178,289.05 and 486,276.82

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Solution

The fourth proportional to 853,784.08, 1,178,289.05 and 486,276.82 is: 671,100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,784.08 : 1,178,289.05 = 486,276.82 : x
  2. Step 2: Convert to fraction form
    853,784.08/1,178,289.05 = 486,276.82/x
  3. Step 3: Cross multiply
    853,784.08x = 1,178,289.05 × 486,276.82
  4. Step 4: Simplify right side
    853,784.08x = 572,974,646,897.71
  5. Step 5: Solve for x
    x = 572,974,646,897.71/853,784.08
  6. Step 6: Final answer
    x = 671,100.18

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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.