Home / 916,809.76-1,265,219.28-514,431.52

Finding the Fourth Proportional to 916,809.76, 1,265,219.28 and 514,431.52

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Solution

The fourth proportional to 916,809.76, 1,265,219.28 and 514,431.52 is: 709,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,809.76 : 1,265,219.28 = 514,431.52 : x
  2. Step 2: Convert to fraction form
    916,809.76/1,265,219.28 = 514,431.52/x
  3. Step 3: Cross multiply
    916,809.76x = 1,265,219.28 × 514,431.52
  4. Step 4: Simplify right side
    916,809.76x = 650,868,677,343.71
  5. Step 5: Solve for x
    x = 650,868,677,343.71/916,809.76
  6. Step 6: Final answer
    x = 709,927.74

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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.