Home / 912,133.90-1,368,200.85-576,210.70

Finding the Fourth Proportional to 912,133.90, 1,368,200.85 and 576,210.70

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Solution

The fourth proportional to 912,133.90, 1,368,200.85 and 576,210.70 is: 864,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,133.90 : 1,368,200.85 = 576,210.70 : x
  2. Step 2: Convert to fraction form
    912,133.90/1,368,200.85 = 576,210.70/x
  3. Step 3: Cross multiply
    912,133.90x = 1,368,200.85 × 576,210.70
  4. Step 4: Simplify right side
    912,133.90x = 788,371,969,519.10
  5. Step 5: Solve for x
    x = 788,371,969,519.10/912,133.90
  6. Step 6: Final answer
    x = 864,316.05

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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.