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Finding the Fourth Proportional to 885,503.04, 1,221,992.64 and 483,095.04

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Solution

The fourth proportional to 885,503.04, 1,221,992.64 and 483,095.04 is: 666,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,503.04 : 1,221,992.64 = 483,095.04 : x
  2. Step 2: Convert to fraction form
    885,503.04/1,221,992.64 = 483,095.04/x
  3. Step 3: Cross multiply
    885,503.04x = 1,221,992.64 × 483,095.04
  4. Step 4: Simplify right side
    885,503.04x = 590,338,583,300.51
  5. Step 5: Solve for x
    x = 590,338,583,300.51/885,503.04
  6. Step 6: Final answer
    x = 666,670.31

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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.