Home / 779,686.64-1,075,967.40-440,154.88

Finding the Fourth Proportional to 779,686.64, 1,075,967.40 and 440,154.88

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Solution

The fourth proportional to 779,686.64, 1,075,967.40 and 440,154.88 is: 607,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,686.64 : 1,075,967.40 = 440,154.88 : x
  2. Step 2: Convert to fraction form
    779,686.64/1,075,967.40 = 440,154.88/x
  3. Step 3: Cross multiply
    779,686.64x = 1,075,967.40 × 440,154.88
  4. Step 4: Simplify right side
    779,686.64x = 473,592,301,830.91
  5. Step 5: Solve for x
    x = 473,592,301,830.91/779,686.64
  6. Step 6: Final answer
    x = 607,413.64

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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.