Home / 761,581.76-1,142,545.02-256,128.83

Finding the Fourth Proportional to 761,581.76, 1,142,545.02 and 256,128.83

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Solution

The fourth proportional to 761,581.76, 1,142,545.02 and 256,128.83 is: 384,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,581.76 : 1,142,545.02 = 256,128.83 : x
  2. Step 2: Convert to fraction form
    761,581.76/1,142,545.02 = 256,128.83/x
  3. Step 3: Cross multiply
    761,581.76x = 1,142,545.02 × 256,128.83
  4. Step 4: Simplify right side
    761,581.76x = 292,638,713,482.20
  5. Step 5: Solve for x
    x = 292,638,713,482.20/761,581.76
  6. Step 6: Final answer
    x = 384,251.21

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Double scale
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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.