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Finding the Fourth Proportional to 867,643.70, 1,301,659.95 and 335,117.30

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Solution

The fourth proportional to 867,643.70, 1,301,659.95 and 335,117.30 is: 502,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,643.70 : 1,301,659.95 = 335,117.30 : x
  2. Step 2: Convert to fraction form
    867,643.70/1,301,659.95 = 335,117.30/x
  3. Step 3: Cross multiply
    867,643.70x = 1,301,659.95 × 335,117.30
  4. Step 4: Simplify right side
    867,643.70x = 436,208,767,962.14
  5. Step 5: Solve for x
    x = 436,208,767,962.14/867,643.70
  6. Step 6: Final answer
    x = 502,751.03

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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.