Home / 1,005,653.85-1,387,603.74-564,143.10

Finding the Fourth Proportional to 1,005,653.85, 1,387,603.74 and 564,143.10

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Solution

The fourth proportional to 1,005,653.85, 1,387,603.74 and 564,143.10 is: 778,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,653.85 : 1,387,603.74 = 564,143.10 : x
  2. Step 2: Convert to fraction form
    1,005,653.85/1,387,603.74 = 564,143.10/x
  3. Step 3: Cross multiply
    1,005,653.85x = 1,387,603.74 × 564,143.10
  4. Step 4: Simplify right side
    1,005,653.85x = 782,807,075,455.19
  5. Step 5: Solve for x
    x = 782,807,075,455.19/1,005,653.85
  6. Step 6: Final answer
    x = 778,406.08

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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.