Home / 1,681,011.18-2,319,792.39-917,064.90

Finding the Fourth Proportional to 1,681,011.18, 2,319,792.39 and 917,064.90

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Solution

The fourth proportional to 1,681,011.18, 2,319,792.39 and 917,064.90 is: 1,265,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,011.18 : 2,319,792.39 = 917,064.90 : x
  2. Step 2: Convert to fraction form
    1,681,011.18/2,319,792.39 = 917,064.90/x
  3. Step 3: Cross multiply
    1,681,011.18x = 2,319,792.39 × 917,064.90
  4. Step 4: Simplify right side
    1,681,011.18x = 2,127,400,176,156.11
  5. Step 5: Solve for x
    x = 2,127,400,176,156.11/1,681,011.18
  6. Step 6: Final answer
    x = 1,265,547.90

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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.