Home / 912,586.33-1,258,988.59-525,309.08

Finding the Fourth Proportional to 912,586.33, 1,258,988.59 and 525,309.08

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Solution

The fourth proportional to 912,586.33, 1,258,988.59 and 525,309.08 is: 724,707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,586.33 : 1,258,988.59 = 525,309.08 : x
  2. Step 2: Convert to fraction form
    912,586.33/1,258,988.59 = 525,309.08/x
  3. Step 3: Cross multiply
    912,586.33x = 1,258,988.59 × 525,309.08
  4. Step 4: Simplify right side
    912,586.33x = 661,358,144,513.56
  5. Step 5: Solve for x
    x = 661,358,144,513.56/912,586.33
  6. Step 6: Final answer
    x = 724,707.49

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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.