Home / 885,430.79-1,221,888.83-503,457.56

Finding the Fourth Proportional to 885,430.79, 1,221,888.83 and 503,457.56

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Solution

The fourth proportional to 885,430.79, 1,221,888.83 and 503,457.56 is: 694,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,430.79 : 1,221,888.83 = 503,457.56 : x
  2. Step 2: Convert to fraction form
    885,430.79/1,221,888.83 = 503,457.56/x
  3. Step 3: Cross multiply
    885,430.79x = 1,221,888.83 × 503,457.56
  4. Step 4: Simplify right side
    885,430.79x = 615,169,168,943.06
  5. Step 5: Solve for x
    x = 615,169,168,943.06/885,430.79
  6. Step 6: Final answer
    x = 694,768.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.