Home / 817,328.51-1,127,918.95-454,767.65

Finding the Fourth Proportional to 817,328.51, 1,127,918.95 and 454,767.65

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Solution

The fourth proportional to 817,328.51, 1,127,918.95 and 454,767.65 is: 627,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,328.51 : 1,127,918.95 = 454,767.65 : x
  2. Step 2: Convert to fraction form
    817,328.51/1,127,918.95 = 454,767.65/x
  3. Step 3: Cross multiply
    817,328.51x = 1,127,918.95 × 454,767.65
  4. Step 4: Simplify right side
    817,328.51x = 512,941,050,281.97
  5. Step 5: Solve for x
    x = 512,941,050,281.97/817,328.51
  6. Step 6: Final answer
    x = 627,582.48

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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.