Home / 853,970.34-1,178,436.69-471,987.30

Finding the Fourth Proportional to 853,970.34, 1,178,436.69 and 471,987.30

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Solution

The fourth proportional to 853,970.34, 1,178,436.69 and 471,987.30 is: 651,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,970.34 : 1,178,436.69 = 471,987.30 : x
  2. Step 2: Convert to fraction form
    853,970.34/1,178,436.69 = 471,987.30/x
  3. Step 3: Cross multiply
    853,970.34x = 1,178,436.69 × 471,987.30
  4. Step 4: Simplify right side
    853,970.34x = 556,207,151,534.04
  5. Step 5: Solve for x
    x = 556,207,151,534.04/853,970.34
  6. Step 6: Final answer
    x = 651,319.05

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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.