Home / 1,114,329.92-1,537,691.28-630,784.20

Finding the Fourth Proportional to 1,114,329.92, 1,537,691.28 and 630,784.20

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Solution

The fourth proportional to 1,114,329.92, 1,537,691.28 and 630,784.20 is: 870,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,329.92 : 1,537,691.28 = 630,784.20 : x
  2. Step 2: Convert to fraction form
    1,114,329.92/1,537,691.28 = 630,784.20/x
  3. Step 3: Cross multiply
    1,114,329.92x = 1,537,691.28 × 630,784.20
  4. Step 4: Simplify right side
    1,114,329.92x = 969,951,363,901.78
  5. Step 5: Solve for x
    x = 969,951,363,901.78/1,114,329.92
  6. Step 6: Final answer
    x = 870,434.64

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Double scale
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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.