Home / 1,186,313.04-1,637,113.50-642,449.70

Finding the Fourth Proportional to 1,186,313.04, 1,637,113.50 and 642,449.70

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Solution

The fourth proportional to 1,186,313.04, 1,637,113.50 and 642,449.70 is: 886,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,313.04 : 1,637,113.50 = 642,449.70 : x
  2. Step 2: Convert to fraction form
    1,186,313.04/1,637,113.50 = 642,449.70/x
  3. Step 3: Cross multiply
    1,186,313.04x = 1,637,113.50 × 642,449.70
  4. Step 4: Simplify right side
    1,186,313.04x = 1,051,763,076,940.95
  5. Step 5: Solve for x
    x = 1,051,763,076,940.95/1,186,313.04
  6. Step 6: Final answer
    x = 886,581.40

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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.