Home / 715,409.26-986,278.28-570,706.18

Finding the Fourth Proportional to 715,409.26, 986,278.28 and 570,706.18

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Solution

The fourth proportional to 715,409.26, 986,278.28 and 570,706.18 is: 786,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,409.26 : 986,278.28 = 570,706.18 : x
  2. Step 2: Convert to fraction form
    715,409.26/986,278.28 = 570,706.18/x
  3. Step 3: Cross multiply
    715,409.26x = 986,278.28 × 570,706.18
  4. Step 4: Simplify right side
    715,409.26x = 562,875,109,595.77
  5. Step 5: Solve for x
    x = 562,875,109,595.77/715,409.26
  6. Step 6: Final answer
    x = 786,787.56

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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.